Having witnessed the terrible massacre of Imperial forces on Isstvan III, Death Guard Captain Garro seizes a ship and sets a course for Terra to warn the Emperor of Horus's treachery. But when the fleeing Eisenstein is damaged by enemy fire, it becomes stranded in the warp - the realm of the Dark Powers. Can Garro and his men survive the depredations of Chaos and get his warning to the Emperor before Horus's plans reach fruition?

Read it because
Not only does this novel continue the story from the epic opening trilogy, it introduces one of the key figures of the series to come: Nathaniel Garro. His destiny might be murky (and clad in grey), but for now he's a simple Death Guard captain. Find out what drove him from his Legion. Also, Rogal Dorn finds out about Horus' treachery. Spoiler: he's not happy.

The eBook edition includes integrated illustrations of characters and events from the story, and an afterword that places the story in context within the series.