Donovan DeChance is a collector of ancient manuscripts and books, a practicing mage, and a private investigator. Over the span of a long life, he has gathered and archived the largest occult library in the world.
When a local houngan begins meddling with powers she may not be able to control, a turf war breaks out between the Dragons motorcycle club and the Los Escorpiones street gang - a war that threatens to open portals between worlds and destroy the city in the process.
With his lover, Amethyst, his familiar, Cleo - an Egyptian Mau the size of a small bobcat - the dubious aid of a Mexican sorcerer named Martinez and the budding gifts of a young artist named Salvatore, DeChance begins a race against time, magic, and almost certain death.
The fate of the city rests on his success, and on the rare talent of a boy who walks in two worlds, and dreams of dragons.