After saving the world once, Sierra’s earned a vacation. She’s thinking Hawaii. Sun, surf, a little bit of work (hey, it’s still Sierra we’re talking about), and sand are all she wants. So when an eme
When Sierra Carter receives a message from Quetzalcoatl, serpent god of the Aztecs, she doesn’t know why she has to be the one to save the world. She learns that her former employer's technology is in
