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Release date: 29 August 2026
Horus Heresy Saga hardback with new cover art
Book 3 of the opening trilogy by Ben Counter
The betrayal at Isstvan III in full
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The opening trilogy's gut-punch finale, in a handsome new Horus Heresy Saga hardback with fresh cover art. Ben Counter's Galaxy in Flames completes the Warmaster's fall: Isstvan III, the virus bombs, and loyal Astartes learning exactly what their brothers have become.
Why read it
The devastating close of the Heresy's opening trilogy — betrayal made total
Joins Horus Rising and False Gods in the collectible Horus Heresy Saga hardback series
New cover art worthy of the shelf space
Next stop after this one: stowing away aboard the Eisenstein. Start or continue your Saga collection with more Black Library.
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