M31
The Horus Heresy timeline
The civil war in which the Warmaster Horus turned half the Legions against the Emperor, ending with the Siege of Terra in 014.M31, and the Scouring that hunted the traitors afterwards. 135 books in the catalogue are set in it, published from 2006 to 2026 by 25 authors. On the timeline they run from Early M31 to Late M41. These books span 7 series, led by Horus Heresy (108 books), Siege of Terra (12) and Horus Heresy Primarchs (7). The factions that appear most are Chaos (85 books), Imperium (61) and Adeptus Astartes (33). Good first reads set here: Horus Rising. The list below runs along the timeline, each numbered series kept in its own order.
All 135 books in timeline order
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