Cora Blackthorn has spent her life confined to a small island because human touch causes her physical pain. When her tomb-raider mother sends a desperate SOS, Cora uncovers the truth: she is the psychic reincarnation of an ancient Olympian warrior named Persephone. Armed with a powerful amulet and a ghostly hitchhiker in her mind, she plunges into a world of secret societies, Greek myth made real, and an alien invasion centuries in the making.

Cora is an anxious, bookish heroine whose growth from terrified girl to fearless leader feels earned rather than sudden. Her sharp intelligence and genuine warmth make her easy to root for, and the layered dynamic between her personality and Persephone's ancient memories gives the series an unusual psychological depth.

Across six books, Cora evolves from a socially isolated shut-in to the fulcrum of an interstellar war between humanity's alien progenitors and a ruthless invading race called the Tsakali. The series weaves together treasure hunting, mythology, romance, and space opera, with Cora's internal struggle to reconcile her quiet modern self with the fierce warrior soul she carries gaining emotional resonance with each book.