Ralph sat up. His voice was croaky. 'If a shooting star zoomed past right now, what would you wish for?''To find another friend like you.' Leo and Ralph have been best friends ever since Ralph flew down from one of Jupiter's moons. But now Leo's older, and Mum and Dad think it's time to say goodbye to Ralph. When the family moves to a small country town, they hope Leo might finally make a real friend. But someone like Ralph is hard to leave behind...