Ashtown burials

When their parents' seedy old motel burns down on the same night they are visited by a strange man covered in skeleton tattoos, Cyrus, Antigone, and their brother Daniel are introduced to an ancient secret society, and discover that they have an important role in keeping it alive.

Barely escaping sinister threats by Dr. Phoenix and the transmortals, Cyrus and Antigone journey deep into the caves below Ashtown, where they seek help from those imprisoned in one of the region's oldest tombs.