It's worth noting that Malazan is a notoriously complex series, often compared to marmite. Readers either absolutely love it or absolutely hate it, no middle ground, so the first thing I want to do is discuss that complexity as it is the series' greatest strength.
At its core, Malazan Book of the Fallen is a decalogy that is epic in scope. If the most epic thing you've ever read is Lord of the Rings, you're missing out on many other great series and Malazan is one of the most epic, telling a tale spanning thousands of years and multiple continents that begins with the Malazan/Genabackis war before spilling out into multiple factions of gods and mortals trying to facilitate or prevent the freeing of the Crippled God from his chains.
And these aren't the only books set in this world. There are many other trilogies and another six book series in the same world, which started life as a GURPS campaign world.
The world of Malazan is a grimdark setting. Death, violence and mutilation are staples of the genre but Malazan doesn't shy away from the darkness. There is physical and mental trauma, dark revelations, a harrowing scene where Hetan is hobbled and gang raped, the forced continuous amnesia of Icarium, to prevent him doing something devastating, and some extremely unfortunate children. The world of Malazan is bleak but not without humour.
Another thing that makes the series so complex is the unusualness of its magic system. Hard magic is becoming more popular in fantasy and a soft magic system like in Malazan is another divisive element of the series. In particular, we are given little to no information about how magic works and what we do see is difficult to reconcile, but the magic in Malazan is inscrutable for a reason. Magic here doesn't follow rules, it is different from person to person, its boundaries unknown. One of the early questions people have is about the Warrens. Are they real physical space that magic is pulled from, or do they exist inside the wizard? The answer is yes and for some people, that's too much and that's only the surface. Trying to apply consistent rules and structure to Malazan magic will only fail, but there is some structure and the complex nature of warrens may make more sense as the series unfolds. You might think being a mage would be a fun thing, but no, in the grimdark world of Malazan, being a mage is generally a bad thing and for most will inevitably lead to their death. One of the saddest moments of the series for me is when Beak, a childlike simpleton but extremely powerful sorcerer, self-immolates while maintaining a protective dome over 800 soldiers.
The final thing that makes the series so complex is the vast cast of characters and many factions that make up the major players in this epic story. Men of the Malazan Empire are numerous as are other mortals. Then there are the gods, from newer upstarts such as Shadowthrone (the god of shadows), to the mysterious Hood (god of death), the bestial Trake (a tiger and god of battle) and the ancient Mael (god of the sea), to name but a few. Then there are those that straddle the line between mortals and gods, the ascendants. We'll cover these more as they appear in the novels but for example, one such notable player is Anomander Rake, the leader of the Tiste Andii (drow/dark elves), a people who are so ancient they have fallen into ennui. Anomander sails the skies in his flying fortress Moon's Spawn and carries a sword named Dragnipur that imprisons the souls of those slain by it, growing heavier which each life it claims, an evergrowing burden on a man with nearly 300'000 years under his belt. Oh and we have not one but two different types of dragon, the soletaken and the eleint. At one point there's an undead pirate with a parasitic vagina.
Ok, let's not get too much further into the deep insanity of the series. It's time to cover some specifics as I share my notes on the first book in the series.
Gardens of the Moon.
As we covered before, this series is complex and the beginning gives us no backstory or exposition. It assumes we are intelligent readers who will hit the ground running and keep up, learning what we need to as we go. For that reason, some of this early set dressing will fail to impress its significance upon us until much later, possibly even a second read.
The book opens with a scene in which a 12 year old boy, Ganoes Paran, meets a soldier of the Malazan Empire, from a unit known as the Bridgeburners. The two have a brief conversation about the boy's aspirations before two more characters arrive. One is another soldier, carrying a fiddle and though we do not know it yet, it will later become clear that these two soldiers are Whiskeyjack and Fiddler. The other arrival is named as Surly and we learn that she has killed the Emperor and has taken his place, setting herself up as Empress Laseen, a name that means Thronemaster. Again, the significance of this will remain a treat for a second read.
We leap immediately forward seven years and meet two dark figures who seem to be masking their true appearance with sorcery. They are up to something shady. They take a young girl and seem to wipe her mind or suppress her personality somehow, revealing little of their true motivations. One of them releases a pack of magical hounds that set about killing everything in a five mile radius. We learn that their names are Ammanas and Cotillion but right now, that means nothing to us.
We now see Ganoes Paran at 19, investigating this massacre. Also entering the story is the Adjunct Lorn, essentially the official embodiment of the will of the Empress. She is named as a magekiller, though how we do not yet know. Lorn is the one behind this investigation and with the information given to her by Ganoes Paran she realises that the massacre is a distraction to veil the fact that two people are missing from this village. A fisherman and his daughter. She instructs Paran to join her service, cover up this massacre and to investigate the records of recent recruits to the Malazan army to look for either a young girl or an old man.
We jump two years and see the mysterious young girl signing up for the Malazan army and requesting to serve under Dujek Onearm, the High Fist of the Genabackis campaign. She appears cold and calculating and gives her name as Sorry. As we still don't know the identity of the two men, specifically the one who named her thus, we can only speculate on the significance of this name. Was he sorry for what he did to her? Or what he intends for her to do? Maybe time will tell.
Back with Ganoes Paran, we meet Topper, a half-Tiste Andii and leader of the Claw, as was Surly before him. It's not explicitly stated who the Claw are but we can use context clues to infer that they are an organization of assassins at the service of the Empress. A portal opens and we get our first look at a Warren, in this case, the Imperial Warren, unclaimed by any god. It is a barren, desolate place that serves the purpose of speeding up travel. A short distance in the Imperial Warren is a much further distance in the real world. Emerging from the Warren, Ganoes meets the Empress, who remembers him from that conversation seven years ago. After that, Ganoes meets up with the Adjunct who reveals her plan to reassign him so the pair can continue to work together in secret. Ganoes returns home where we meet his younger sister Tavore and hear mention of his even younger sister, Felisin.
Characters are coming quick and fast and yet so far, all the people we've met will prove to be important players in the upcoming story and we're not done, not by a long chalk.
Our next scene takes place in Pale at the end of a three year long siege by Malazan forces. We see the high ranking wizard Tattersail standing among the dead. It's worth noting at this point that sorcerer and wizard are used interchangeably here, indeed Tattersail is referred to as both in just this one scene. She is in the company of one other mage, Hairlock, who has been torn in half and is now just a torso leaking entrails. Despite this, Hairlock is clinging to life with his sorcery and informs Tattersail he has a plan to escape death. Four soldiers arrive, a grizzled veteran, two black men and a fifteen year old girl. Tattersail recognises them as Bridgeburners, the Emperor's Elites who fell from grace after his demise and are now assigned only the most dangerous tasks, ensuring their ever dwindling numbers. She recognises Whiskeyjack as the sergeant and now we know which unit Sorry was attached to.
Tattersail recognises the tremendous magical power of one of the other men and is surprised she doesn't know him, given her position. Whiskeyjack names him as Quick Ben while the mage converses with the dying Hairlock. Everything about this scene, from Tattersail's surprise to the fact that he is conversing with Hairlock should be warning us that there is more to Quick Ben than meets the eye.
We flash back just briefly, to witness how the siege ended. A meeting takes place between Dujek Onearm, commander of the forces besieging Pale and four of the Empire's High Mages, Tattersail, Tayschrenn, Calot and Hairlock. Each of the mages is on edge, not only because they can sense each other's power, which causes discomfort, but because they can sense the power emanating from something floating high above the city. Moon's Spawn, a floating fortress. From it, the warlord Caladan Brood has led Tiste Andii wizards to defend Pale, essentially stalemating the conflict. It's not Brood they fear, who is human, but his companion, the enigmatic leader of the Tiste Andii, Anomander Rake. Specifically the mages can sense the presence of the Tiste Andii Warren, Kurald Galain. The Tiste Andii are a race from the Elder Age, long before man existed and the wizards remember an ancient poem that mentions both Anomander and Caladan, suggesting that the latter may be older than the average human by some margin. We also hear brief mention that Empress Laseen has an army of undead called the T'lan Imass, a simple namedrop now but sure to rear their heads again later. Tayschrenn is outlining the Empress's plan for a magical assault upon Moon's Spawn, confident that Anomander will refuse to fully commit to the conflict as he has done in the past.
Side note, there are a few spinoff books that detail the early days of the Tiste and how they split off into the Tiste Andii, the Tiste Edur and the Tiste Liosan (dark, grey, sun elves kinda). It also covers how their leaders became Father Light and Mother Dark, now their two gods, which is when the Warrens of Kurald Galain, Kurald Emerlahn and Kurald Thyrllan were formed. The depths of Malazan lore are kinda crazy. Anyway, we won't see the other Tiste offshoots for some time. For now just be aware that these guys embody darkness, but not necessarily in an evil way. In fact Malazan is designed to avoid the traditional trope of good vs evil and dabbles almost entirely in the grey murk between.
We're nearly done in Pale. We see the assault on Moon's Spawn with roughly 14'000 Malazans facing off against 'thousands upon thousands' of Great Ravens, ravens with 15 foot wingspans, that emerge from the fortress. The Malaz mages throw sorcery at Moon's Spawn, Anomander appears and hurls sorcery back. It goes bad for Malaz, 9000 soldiers killed along with all the mages bar Tayschrenn, Tattersail and Hairlock but then Moon's Spawn retreats, the Malazan Army wins and Pale is conquered.
During the fight, one thing of note is that we learn that Tattersail uses the Thyr Warren, while Calot uses Mockra. We'll also hear Denul mentioned later and we understand that these are not Elder Warrens. It seems that each mage has access to one warren that flavours their magic. We also see Tattersail describing it as opening her warren to unleash her magic. This is what confuses a lot of people early on as it seems to contradict what we know about the Imperial Warren from earlier, which was a physical place Ganoes Paran travelled through. My understanding of it is that each Warren is kind of a plane of existence (more on that much much later, when we learn how they were formed), but that a mage can essentially invoke or evoke that Warren's energies, either opening a link to it inside themselves to channel the power and cast magic, or opening a a link to it directly, manifesting a portal in order to travel there. It's complicated and weird and it's gonna get weirder but for now, that's what we're working with.
We catch up to our original scene with Tattersail, the Bridgeburners and the dying Hairlock who reveals to Tattersail that they were betrayed by Tayschrenn who was the one who killed him. Quick Ben opens a Warren that Tattersail doesn't recognise and places a package wrapped in hide against the mage's chest as he dies. Afterwards he hands the package to Tattersail and tells her to open it when she's alone in her tent. We learn that the Bridgeburners are being assigned to Darujhistan next, that the second black man is an assassin called Kalam and that Quick Ben is scared of Sorry, for reasons unknown.
Tattersail returns to her tent, we learn that she is 219 years old and that she has a magical artefact called the Deck of Dragons that is like a tarot deck. Before she can toy with it, the package makes a noise. She opens it to find an intricately carved marionette with clothes and a hat that talks to her. It's Hairlock! Tattersail is gobsmacked as the magic to perform a soul transfer has been lost for over a thousand years.
At this point we should be noticing just how insanely powerful Quick Ben is for a simple squad mage. He used a warren that Tattersail, a 219 year old high Mage doesn't recognise, to cast magic lost for over a thousand years. Sus.
Anyways, Hairlock wants Tattersail to go to his tent and get his spellbook before Tayschrenn remembers to steal it, but first he tells her to draw from the Deck of Dragons. She draws the Knight of Dark, now recognising it as Anomander Rake. Next she draws Oponn, the two faced jester, god of Luck, both bad, in his male form, or good in his female form. The female side is up and Tattersail hears a sound that Hairlock doesn't, like a coin spinning. She stops there. Hairlock rages that no one holds on the fool and that she should continue to play but she seems satisfied that she has earned Oponn's blessing and that good luck is on her side. The Deck of Dragons is confusing as hell and we'll run into it some more later on.
By the way, if this whole scene of Hairlock putting his soul in the marionette sounds vaguely familiar it's because it's the plot of 1988 horror film, Child's Play, in which dying serial killer Charles Lee Ray uses voodoo to transfer his soul into a child's doll after a shootout in a toy store. I'm sure that's just a coincidence. While we're on a tangent, that poem about Anomander we mentioned earlier? In it, he is named as Anomandaris. People and things with multiple names is a theme that's gonna crop up more often as we get further in. When you're dealing with beings this old, names change over time as language changes so there's gonna be a bit of this. Also some disguises. Ok, one last side note before we move on. Let us not forget, Hairlock prepared for this moment. We have to assume he somehow foresaw his own death and somehow knew Quick Ben would be able to provide him with this 'get out of death' free card. Already we're seeing such big plays and we've barely started. Final note is that Quick Ben didn't do this for free. He negotiated something unknown with Hairlock as he lay dying. Will we find out the price of Hairlock's salvation later?
Into chapter three and now we have a grasp on who some of the characters are we can skip a few details and just pick at the important threads. We see Ganoes Paran again, two years after we last saw him. Topper arrives by warren and tells him they've found Sorry. They think she is the pawn of a god, though not which one, and want Ganoes to go to Darujhistan and take command of Whiskeyjack's squad without letting Sorry know that they are onto her. Meanwhile, as the Bridgeburners discuss their plans, we learn that Quick Ben and Kalam think Sorry is a Claw assassin sent by the Empress to kill someone.
Tattersail meets with Tayschrenn, but doesn't mention the betrayal. Tayschrenn gets Tattersail to read the Deck of Dragons as he is having trouble doing so. She draws a couple of cards indicating that the reading applies to the upcoming events in Darujhistan before drawing two significant players. The Assassin of Shadow, aka the Rope, the Patron of Assassins. She hears hounds howling in the distance. She comments that High House Shadow is relatively new in god terms and that The Rope serves Shadowthrone. Hopefully you're piecing a few things together here. Next she draws the Virgin of House Death. She notes the interesting design of the card, with the virgin blindfolded. It seems the pictures on the Deck of Dragons change as needed to fit the persons playing these roles and in this case, the face changes even as Tattersail views it. Tattersail suspects that this card is Sorry.
What I love about this is that although the various factions only have pieces of the puzzle, we as the reader can piece together what they know and figure the bigger picture out. Ganoes and co know Sorry is the puppet of a god but not which one, Quick Ben and Kalam know that Sorry is an assassin but not who she serves, and Tattersail knows that Sorry is somehow linked to the Rope and by association, Shadowthrone. We can now surmise that the two men at the start, Ammanas and Cotillion were actually Shadowthrone and the Rope, the god and assassin of shadow. They intend to use Sorry to assassinate someone and tried to cover their tracks so it couldn't be linked back to them. She is controlled or possessed by the Rope. As for who their target is, given how quickly Sorry asked to be assigned to Dujek Onearm (and yet hasn't killed him) we can presume the target is someone whom Dujek will come into contact with. Coupled with Tattersail's deck reading, we could assume that this target is waiting in Darujhistan.
For now, Ganoes Paran makes his way to Pale, helped by a guide, a one-eyed Claw named Toc the Younger. He arrives at Pale and begins looking for Whiskeyjack. He comes across some new Bridgeburners we haven't met yet, Mallet, Hedge and Trotts. They tell him where to look for Whiskeyjack but shortly after leaving the bar, Ganoes is assassinated. As he lays dying we overhear conversation. Someone calls the assassin sloppy and when they answer we realise it is Sorry. Or, more specifically, as the two converse, this is Shadowthrone and Cotillion, who is possessing Sorry. Shadowthrone says someone is trespassing in the Warren of Shadow and his hounds are hunting for them. They reveal that their target is Laseen and that they wish to bring about the fall of the Malazan Empire that she rules but never earned. We learn that the Rope has assassinated Ganoes in order to draw the Adjunct into the fray. As the pair leave Ganoes, he hears a coin spinning.
Tattersail meets up with the Bridgeburners and tells Whiskeyjack that she thinks Hairlock has gone insane in his new body. Quick Ben claims that's not surprising but that he has it under control. He mentions that Hairlock is working for the Bridgeburners, trying to find out who wants them dead and is slipping through the warrens "the unconventional way" as the regular paths are all trip-wired. Wtf? Just when we thought we understood how warrens worked, what is this now? It gets weirder. Tattersail says Hairlock is using the paths between warrens and that's a bad thing for everyone. When Whiskeyjack asks for an explanation, Quick Ben adds that it weakens the warrens, which allows Hairlock to break in and out of them, but that they have no choice.
Personally, I figure the point he's trying to make here is that Hairlock is travelling directly from warren to warren without returning to the material world in between, but yeah, this is confusing. I guess this means Hairlock is the one Shadowthrone detected in the warren of shadow?
Anyway, at this point Whiskeyjack tells Quick Ben to tell Tattersail what they know about Sorry. Quick Ben tells Tattersail about the incident from the start of the book. He knows the Adjunct tried to cover it up and he knows about the hounds. He's followed the logic. Adjunct Lorn is a mage killer, this incident must have been magical, dogs were involved. Tattersail quickly reaches the same conclusion. The seven hounds of shadow, in service to Shadowthrone and the Rope. Tattersail wonders why the warren of shadow keeps crossing paths with the Malazan Empire. Kalam offhandedly mentions how odd it is that the warren only appeared following the Emperor's assassination. Shadowthrone and Cotillion were unheard of before Kellanved and Dancer's deaths. Woah buddy. Slow down. Who are those guys? Well. If you can't figure out that Kellanved must be the Emperor then you're gonna struggle going forward. Which makes Dancer, Cotillion, aka the Rope. I told you multinames were gonna be important.
Tattersail curses herself over how obvious it now seems with hindsight. She is confused about the warren though, asking Quick Ben if there hasn't always been an accessible warren of shadow. She names it Rashan, the warren of illusions.
Quick Ben tells her Rashan is a false warren, a literal shadow of what it represents, an illusion itself. Not even the gods know who created it or where it came from. Quick Ben says the true warren of shadow had been closed for millennia until 1154th year of Burn's Sleep (the year Surly took the throne of the Empire), nine years ago. The earliest writings of house shadow suggest its throne was originally occupied by the Tiste Edur. Tattersail does not know the Tiste Edur, Quick Ben only knows they are some relation to the Tiste Andii, nothing further. Ultimately, everyone now pegs Sorry as an agent of House Shadow.
This whole time, Fiddler has been pacing around and now mutters that he has a bad feeling. This perks the Bridgeburners up. It seems Fiddler's bad feelings are usually important. Tattersail asks where Sorry is. The Bridgeburners bail en masse, out into the streets of Pale.
Let's take a quick moment to mention Burn's Sleep. This is the focal point of the Malazan dating system, much like how we use the birth of Christ as a marker for BC/AD. Burn is an Elder Goddess and time is measured from before and after she fell asleep. It's possible that Burn literally is the earth, as in the planet this story takes place on. We'll get some more info about Burn later but as we may need to mention dates I figured now was a good time to bring it up. Also, before we continue, remember how we left Ganoes and what the sound of a spinning coin might represent. Shadowthrone is not the only god meddling with current mortal affairs.
Bam, Ganoes wakes up in a weird place and comes face to face with Oponn. Oponn is a single god, but is twins. A Lord and a Lady, bad luck and good luck, two sides of the same coin. Oponn mentions that he likes Ganoes' sword and Ganoes laments giving it such a silly name in his idealistic youth. We don't know the name yet, but we can assume it references Oponn. Oponn tells Ganoes he has been murdered. Ganoes asks why he hasn't passed through Hood's Gate. Oponn tells him it's because they are meddling. Oponn calls out Hood but instead, one of Hood's servants appears. Oponn is offended that the god of death won't talk in person but demands Ganoes be returned to life, claiming that as he was killed by a god, he's fair game. Hood's servant says there will be a price. Despite Ganoes' protestations, Oponn agrees. Someone close to Ganoes will have to bear the price. Uh-oh.
Oponn leaves and almost immediately Shadowthrone arrives, flanked by a pair of hounds. He's come to finish Ganoes off but Ganoes taunts him, he tells Shadowthrone someone has intervened on his behalf. Shadowthrone is eager to learn who opposes him but Ganoes won't tell and points out that if he dies, Shadowthrone will be none the wiser. The only way to know, would be to keep tabs on Ganoes in the mortal world. Shadowthrone seems to accept this. He keeps talking but Ganoes only hears a spinning coin as he is pulled back to the mortal world. He has a strange vision of his past being subtly altered as he makes his way back to life.
Two Bridgeburners, Antsy and Picker who we briefly met earlier, have found Ganoes' dead body. He's been dead for an hour then he suddenly starts screaming. In a panic they rush to get Mallet, the healer.
Tattersail is reading the Deck of Dragons, a full reading using all the cards. She's drawn a downward spiral with them, an ill omen. At the bottom, an image of a hound. She realizes House Shadow and Oponn stand in direct opposition. At the top of the spiral, the Mason of House Death, described as a grey bearded man with tough arms and holding stonecutting tools. We do not know who this is yet but can soon guess. The Knight of House Dark appears again, halfway down the spiral, the card now shows the Knight wielding a smoking black sword, pointed at the hound. It seems there is no alliance between Darkness and Shadow. Tattersail is interrupted as Quick Ben arrives via warren. He tells her Hairlock is coming.
We see Whiskeyjack and Fiddler, reminiscing about old times, including before they became soldiers, when they were both stonecutters. Hang on, Fiddler is a red head, but Whiskeyjack... he has grey hair and a beard. :O Well in case you didn't pick up on it, now it's been handed to you, a rare treat for Malazan. Whiskeyjack is the Mason of House Death and a major player in our current events.
Back with Tattersail, Quick Ben and now Kalam, QB alerts the others that the hounds have caught Hairlock's trail. It seems he is able to monitor the doll somehow, keeping tabs on him remotely. He's hovering above the floor in a sitting position while he does so. Tattersail has a sudden revelation. Surely these idiots aren't using Hairlock as bait to lure a hound? Kalam assures her that's not the idea as that would be insane.
Mallet enters, to inform them that Ganoes Paran lives and should recover fully. He mentions that the first blow was fatal, the second was to ensure that if he survived the first he would still bleed out, there is no way he could have survived naturally and could only have been saved via divine intervention. He uses the warren of Denul for healing and explains that healing is normally done naturally, a mage heals the body and mind of the trauma at the same time. Ganoes has been denied that synchronicity and may find it hard mentally as the divine intervention healed only his body. Quick Ben announces that the attack on Paran came from Shadow and thus whoever saved him directly opposes them. He looks at Tattersail, who says nothing. The Bridgeburners leave Ganoes in Tattersail's care, saying they'll be gone before he awakes or Hairlock arrives, as they head to Darujhistan, the last Free City on Genabackis.
Back with the Bridgeburners, Sorry appears and gets a dressing down from Kalam over her absence but no one accuses her of murdering Ganoes yet.

Hopefully this image of Shadowthrone and his hound will give you a sense of scale for the following events.
A hound arrives in Pale, the size of a mule with teeth as long as a man's thumb. The seventh of seven. It's name is Gear. It knows that what it tracks is not human, this being that has trespassed in the warren of shadow and triggered all of Shadowthrone's wards. He follows the scent, arriving at the estate where Tattersail and co are located.
Tattersail can't sleep. As she lays, trying to order her thoughts, Hairlock arrives. He arrogantly regales her with tales of how he eluded the detection of the hounds. From outside, we hear the screams as Gear assaults the guards. Hairlock panics, hiding in his box and commanding Tattersail to kill the hound. She is less than confident about her chances. She opens her warren, barely having time to erect her magical defences as Gear smashes his way through her door. The sense of its power overwhelms Tattersail as she realises just how old this creature is. It charges her, her outer defences don't even touch it and only her close defences, a layer of high wards, save her life as she is flung backwards, making a dent in the brick wall. The hound is stunned briefly but Tattersail can barely raise one blood-soaked arm in defence.
Hairlock bursts from his box, taunting the hound and opens his warren in the room. A pestilent aura radiates from Hairlock, causing Tattersail to vomit. Gear tries to fight against the magic with his own.
Paran totters into the room, swathed in blankets. As Gear and Hairlock face off, he reveals his sword beneath the blankets and lunges for the hound, sinking the blade deep inside the beast's chest. As he pulls it free, Gear howls in pain, opens the warren of shadow and dives through. Tattersail comments on what a lucky blow Ganoes' sword just struck. Hairlock curses Oponn and says that Tayschrenn will be here soon, tell him nothing of this. Tattersail passes out but as she does, Paran asks her what she hears. She tells him she hears a coin, a spinning coin.