Coils

Cressida loves Greek mythology, tales of gods and monsters, but she knows they aren t real no matter how awesome it would be to meet the beautiful women of myth. When her aunt June disappears, Cressida realizes the other members of her family aren t so rational. June s notes point to a possible entrance to the fabled Underworld before they cut off completely.
Following June s footsteps leads Cressida into a world she knew only as legend, a place of marvels and danger, where the living are highly prized by the dead. Desperate, Cressida turns to Medusa, a demigoddess who s been maligned by myth, but everything in the Underworld comes with a price. Medusa is more than willing to help find June, and all it will cost Cressida is one little murder."