The Burden of Loyalty is the forty-eighth volume in The Horus Heresy series of novels and is an anthology. The Burden of Loyalty was released in October 2018 as a hardback which included a full-art hardcover.
As the darkness of the war slowly consumes the galaxy, those who still serve the Throne are faced with a struggle for their survival and the continued existence of everything they hold dear. With the threat of the Warmaster Horus' fleet looming ever closer to Terra, it will fall to such heroes to halt the tide, but the enemies arrayed against them are powerful and the burden of loyalty is great...
Heralds of the Siege contains the following 6 short stories, and 2 novellas:
- Dark Compliance and Now Peals Midnight by John French
- The Painted Count and Duty Waits by Guy Haley
- Dreams of Unity by Nick Kyme
- Children of Sicarus by Anthony Reynolds
- Myriad and The Ember Wolves by Rob Sanders
- Exocytosis by James Swallow
- The Grey Raven, Valerius and The Board is Set by Gav Thorpe
- Blackshield, The Last Son of Prospero, The Soul, Severed and Magisterium by Chris Wraight
- Heralds of the Siege (Anthology) edited by Laurie Goulding