Certain Dark Things

"In Mexico, local drug-dealing vampire gangs that trace their lineage back to the Aztecs clash with European newcomers — everywhere but Mexico City, where human gangs have declared a vampire-free zone. Living on the margins of this world is Domingo, a 17-year-old garbage collector with a heart of gold, whose vampire comics don’t prepare him for the real thing. When he meets Atl, a vampire woman being hunted by a rival gang, he gets swept up in a whirlwind of blood debts and danger. Fast-paced and full of gorgeous characters, this is urban fantasy with emphasis on the urban: Mexico City is as much a character as the vampires."