The Great Leandro's Treasure

Emily's family thinks she just imagined a prowler snooping around the old house they're moving into. That leaves it up to Emily and her new friend Russell to prove there really is someone sneaking around - and figure out what he's hunting. Could it have something to do with the old trunk they find in the attic? The trunk belonged to a famous magician who traveled all over the world. On one of his trips he saved a boy from bandits and received something very valuable as a reward. But what was it? Can Emily and Russell solve the mystery and find the treasure before the prowler causes more problems for Emily's family?