Banner of Souls — Liz Williams

One of Spectra's most imaginative and talented authors now takes us on a phantasmagoric journey into a strange future fueled by haunt-tech: a technology which works by harnessing energy from of the realm of the dead. But who are the mysterious race known as the Kami who brought haunt-tech to earth? Saviors from another world, or something else entirely? And how does the child named Lunae who can manipulate time with a thought fit into the puzzle? It is up to the Martian warrior Dreams-of-War to answer these questions before life as she knows it comes to an end.