The Eighth Day The Eighth Day Series, Book 1.

Fans of Percy Jackson will devour this first book in Dianne K. Salerni's time-bending series that combines exciting magic and pulse-pounding suspense. In this riveting fantasy adventure, thirteen-year-old Jax Aubrey discovers a secret eighth day with roots tracing back to Arthurian legend. When Jax wakes up to a world without any people in it, he assumes it's the zombie apocalypse. But when he runs into his eighteen-year-old guardian, Riley Pe...