Disco is king and the nightclubs are full of young, beautiful people with Saturday night fever. From the Sunset Strip to Hollywood Boulevard, a new era is dawning. But below the glitz and glamour, a darkness lurks.

Chloe Mendoza knows darkness. She is a nagualii, a half-demon created by the gods of Central and South America, a daughter of the Court of Feathers, a group of demigods who ruled Mesoamerica before the Spanish arrived.

Now, she is a member of Monster Hunter International’s latest team, based in the L.A. Basin. Business is good in the City of Angels, but soon Chloe gets a message from the Court of Feathers, warning her of a Dark Master who is building up its power in the region. Whatever it is, it brings death and carnage with it.