Imagine if, right now, clattering underneath your feet was a secret train system that could take you anywhere in minutes. Imagine a trip full of mystery and excitement from New York to Barcelona to the wind-swept coast of Italy to the edge of space. Imagine dangerous strangers, amazing friends, and high adventure. Imagine Mytro. The first book in the Mytro trilogy, this thrill ride of a story follows Turtle and Agata as they learn the secrets of a mysterious group trying to control the world and the strange creatures that could destroy it.