The King's Lizard — Pamela Christie

It's 1782 in New Mexico and slavers are plying their trade ruthlessly throughout the colony. Apaches and Comanches battle with Spanish militias to protect their homelands. Governor Anza, at his wits' end, commandeers the help of Nando, a naïve but wily young half-breed, embedding him in his network of spies.
Fast-paced and true to the realities of the time, The King's Lizard catapults the reader into the fierce and demanding life of colonial Santa Fe.