"Victory is vengeance."

—Book's tag-line

Corax: Soulforge is a novella in The Horus Heresy series of novels, released as an exclusive in hardback format. The novella has since been reprinted as a non-limited hardback, an ebook, and an MP3 audiobook. The short story The Shadowmasters is included within the limited edition novella's dusk jacket. Both Corax: Soulforge and The Shadowmasters were later included in the Corax anthology novel.


In spite of the corruption of Corax's plans to rebuild his Legion after the Drop Site Massacre, the surviving Raven Guard remain defiant. Happening upon a stricken Word Bearers vessel far behind the front lines, they find evidence of a new alliance between the Traitors and the Forge World of Constanix II –- with rumours of terrifying new war machines stalking battlefields across the sector, it is a threat too great to ignore. The Primarch Corax must infiltrate the heart of the Dark Mechanicum priesthood on Constanix II if he is to win any allies for the war to come, though he will likely be forced to confront the truth of his own mysterious nature along the way...

Raven Guard Series

The following is the chronological order of the Raven Guard Series story arc set within the Horus Heresy:

The Raven Guard Series begins shortly after book eighteen, Deliverance Lost. All of the Raven Guard Series is included in the anthology novel Corax.


  • Corax: Soulforge (Novella) by Gav Thorpe
  • Corax (Anthology) by Gav Thorpe
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