 One of the novellas is mainly about an all-out close-quarters space battle, between a Loyalist sent to punish Horus following the events of Isstvan III (Book 3) and the Traitor fleet that ambushes it; the other new novella deals with the aftermath of another naval engagement in space that cripples the Night Lords Legion.The narratives of all stories fill gaps in the series or add further details about the Heresy and its actors; they cover periods that range from several decades before the conflict to around the time frame of Book 18 (one short story is a prequel to that novel).This anthology contains the following stories