Blood Engines

Marla Mason, a witch from Felport, faces a dire threat from a rival sorcerer and must travel to San Francisco to find a powerful magical artifact. Her quest quickly turns complicated when she discovers that San Francisco's magical community is being targeted by a mysterious assailant, with sorcerers gruesomely picked off one by one. Marla and her partner, Rondeau, must race against time through the city's strange streets, dodging various dangers and local suspicions, to uncover the killer before Marla becomes the next victim.