StowawayThe beloved author of Posted and Ms. Bixby's Last Day returns with the first book in a coming of age sci fi duology about Leo, a kid trying to navigate the galaxy in order to save his familyand, possibly, the planet Earth. When scientists discover a rare and mysterious mineral buried in the Earths crust, they have no idea that it just happens to be the most valuable substance in the entire universe. Its not long before aliens show up to our little