Prince of Blood is a short story published in The Primarchs series that was originally part of an anthology. Prince of Blood was first published as part of the Sons of the Emperor anthology in February 2018. The cover image used is that of Sons of the Emperor, as Prince of Blood has yet to be published separately.
Aboard the flagship Conqueror, the Legionaries and mortal crew face a slow and terrible death, driven insane by thirst or to increasing acts of violence. Their only hope lies with Khârn, who will risk anything to save the fleet and a Primarch slowly succumbing to madness. For Khârn knows the blood must flow...
- Sons of the Emperor (Anthology), "Prince of Blood" (Short Story) by Laurie Goulding