There are fifty-four novels in the main Horus Heresy line. Black Library just announced they’re reprinting twelve of them as fresh hardbacks under a banner they’re calling the Horus Heresy Saga, new Neil Roberts covers on the lot, numbered I through XII. It’s a greatest-hits run aimed at people who’ve never read the series and quite reasonably don’t want to commit to roughly 7,000 pages on the word of some bloke on Reddit. Twelve books is a sane on-ramp. I’d recommend exactly this to someone curious.
A Thousand Sons isn’t one of the twelve.
I’ll come back to that, because I can’t help it, but here’s the actual list first. The Saga opens with the trilogy everybody already owns: Horus Rising, False Gods, Galaxy in Flames. Then The Flight of the Eisenstein, Fulgrim, The First Heretic, Prospero Burns, Know No Fear, Betrayer, Praetorian of Dorn, The Master of Mankind, and Slaves to Darkness to hand you over to the Siege. Hardback first, then paperback in English, French, and German. They revealed it back in November at the World Championships preview and the first ones are on shelves now.
What the Horus Heresy Saga actually is
Strip the marketing off and this is Games Workshop telling new readers which twelve books happened. That’s the real function. The Heresy series sprawled for two decades and somewhere around book thirty it became a shared universe with its own publishing schedule, and the single throughline got harder to find under all of it. Loads of those books are good. A fair few are people filling in a corner of a map nobody asked about. So a curated dozen is GW drawing a line around the load-bearing books and pointing newcomers at those instead of the full forty-odd-book pile.
Look at who wrote them and the shape gets obvious. Three Abnett, three Aaron Dembski-Bowden, two Graham McNeill, two John French, one James Swallow, one Ben Counter. The series has dozens of contributors and the Saga leans almost entirely on the four authors who were doing the heavy plot lifting. Abnett gets you in the door and blows up Calth. ADB does the actual theology of the fall: Lorgar in The First Heretic, Angron and Kharn in Betrayer, the Emperor himself in The Master of Mankind. French closes the net with Praetorian of Dorn and Slaves to Darkness. It’s a spine, and it mostly tracks the official Heresy timeline beat for beat.
What’s gone is the connective tissue and the side-quests. Mechanicum, gone. Legion, the Alpha Legion one a lot of people will tell you is a top-five Heresy book and which spends its whole length pulling the rug out from under who’s actually loyal, gone. Vengeful Spirit, the book where Horus literally meets the Chaos gods at Molech and stops being a man you can argue with, cut. Scars, the White Scars one that finally made the Khan interesting to me, not invited either. Descent of Angels, Battle for the Abyss, the whole Shadow Crusade middle stretch, all left on the cutting room floor. If your favourite is in the back half of the series there’s a decent chance it didn’t make the boat.
I don’t actually hate the selection. That’s the annoying part. If a coworker asked me where to start and didn’t want a reading-order spreadsheet, I’d point them at roughly this set and tell them they could stop after Master of Mankind without missing the throughline.
If I’ve got a second quibble it sits at the other end from the cuts. The Master of Mankind is in, at number eleven, and that’s a genuinely strange book to hand a newcomer. It’s ADB’s lore-dense one, barely any Space Marines in it, the Emperor and the Custodes and the Mechanicum fighting a secret war in the Webway while the actual rebellion happens offscreen. I think it’s one of the best things Black Library has ever published. It’s also the book that asks the most of a fresh reader, the one where you need the preceding decade of context for the Emperor’s silence to land at all. Putting it in over Vengeful Spirit, which is the literal scene where Horus shakes hands with the Chaos gods at Molech, is a call I keep turning over in my head.
The book they cut
So. Prospero Burns is in at number seven, and A Thousand Sons isn’t anywhere.
If you don’t know the pair: they’re a duology. Same event, the Burning of Prospero, the Space Wolves sent to bring Magnus to heel after he cracked the Emperor’s wards trying to warn him. McNeill wrote A Thousand Sons from inside the XV Legion — Ahriman, the flesh-change, Magnus making the worst good-intentioned decision in the setting’s history. Abnett wrote Prospero Burns from the outside, following a human skald among the Wolves, and the burning itself only really lands in the final stretch. They were commissioned as a pair and put out within a couple of months of each other, meant to be read back to back.
GW kept the outside view of Prospero and dropped the inside one.
And I keep trying to be fair about it. Prospero Burns is, sentence for sentence, probably the better-written novel. Abnett’s prose usually is. It’s also a more self-contained read, you can hand it to someone with no Heresy context and they’ll follow it, where A Thousand Sons asks you to care about Legion politics and psychic taxonomy before it really gets going. From a pure “least friction for a newcomer” angle I can almost build GW’s case for them. Almost. Then I remember that A Thousand Sons is the book that actually explains why there’s a Heresy worth reading about, that Magnus walks into ruin with the best intentions in the entire setting, and that Prospero Burns without it is a very good war novel about some Vikings who turn up and burn a city you were never once shown the inside of.
I should admit the bias outright. A Thousand Sons is the reason I have a Thousand Sons army. I read it in a single weekend back in 8th edition, right when the big Magnus model had landed and every Chaos player at my local store suddenly had opinions about the flesh-change, and I went out the following Saturday and bought a box of Rubric Marines I had no business buying. Painted the first five in completely the wrong blue, too dark, more Alpha Legion than Prosperan, and I never stripped them. They’re still in the army. Kiran calls them my “off-brand” squad every single time they hit the table.
So yeah. A Thousand Sons. It’s not a perfect book. The middle drags, the cast is enormous, McNeill’s prose isn’t Abnett’s. Point is it’s the emotional core of the early Heresy and they left it in the warehouse while keeping the companion piece that was designed to lean on it. That’s the bit I can’t get past.
Who this is actually for
The covers are the easy sell. Neil Roberts did almost all the original Heresy and Siege of Terra covers, every one bar a single exception, so the look of the series has been his the whole way through. For the Saga he’s gone back and painted brand new art rather than just reprinting the old pieces, which is a properly nice touch on a numbered hardback run. The new False Gods has Horus and Abaddon leading the speartip through the swamps of Davin, and it’s gorgeous. I’d shelve these face-out, which I never once bothered doing with the paperbacks.
None of this matters if you already own the series, obviously. If you’ve got the black-spine paperbacks in a long sagging row you’re not buying the row twice for fresh covers, however good those new ones look. This is a product for people who currently own none of them.
As a newcomer product it’s mostly very good. The opening trilogy is non-negotiable, Garviel Loken carries the first three books and his arc is the cleanest way into the whole thing. Know No Fear is still the best single “the Heresy starts here, on this specific afternoon” novel ever written. Betrayer is ADB at full volume. Ending the run on Slaves to Darkness drops you straight at the lip of the Siege of Terra, which is the correct place to either stop or fall in completely. The only structural complaint I’ve got is that twelve books still ends mid-story, and a reader who finishes the Saga and wants more has to go work out the reading order for a forty-two-book remainder with no map.
If you’re starting fresh, get them, read them in order, and don’t let anyone gatekeep you about it. Abnett’s still putting out the best 40K prose going, his new Hive novel is proof of that. On Prospero, though, he was only ever writing one half, and when you hit book seven and feel like you’re missing the other side of the conversation, you are. Go find A Thousand Sons secondhand and read it next.
