Greg Leitich Smith lives in Austin, Texas, with his wife, author Cynthia Leitich Smith. He is the author of"Chronal Engine, "as well as three other middle grade novels: "Little Green Men at the Mercury Inn, "and"""Ninjas, Piranhas, and Galileo"and its companion book, "Tofu and T. Rex."He is also co-author of thepicture book"Santa Knows."Visit Greg at www.gregleitichsmith.com.