After finding a dead man in her office, Hercula Perry simply needs some time away from her job at Hjerson University. When her rich aunt Cynthia books her on the Orion Express, the first-of-its-kind tourism transport to the Moon and back, it's not what Hercula had in mind to escape, but she's not about to pass on the opportunity -- or the free food and drink. She takes the chance to get away from it all for a week, only to find things aren't...