Book 54 in the Horus Heresy, James Swallow’s The Buried Dagger brings the main-range series to a close as the final book before the Siege of Terra begins. It’s a deserved moment in the spotlight for the Death Guard both past and present, told across two narratives with similar themes. One strand features the long-awaited ‘doom of the Death Guard’, the moment when Mortarion and his sons are becalmed in the Warp and turned to Chaos, while the other focuses on ex-Death Guard Nathaniel Garro and Malcador’s Knights Errant as they unravel a series of complex, unexpected mysteries back on Terra.
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