Echoes — Tom Shachtman

Ell, a millennial of European and Mexican heritage, has one humorous children's book published, but her more serious writing projects are stalled, her boyfriend has dumped her, and she is deeply frightened by a recurring dream. To solve her problems, she delves into family mysteries -- Civil War-era slaveholding, madness, and theft of artifacts. The key to all, previously unknown to Ell but remarkable, is a female Confederate warrior ancestor whose nightmare echoes her own. By tracing both of their dreams to ancient times, and by using insights from modern genetic theory, Ell solves the mysteries and enables herself to move forward.