Geronimo Stilton: Mouse Overboard

You can’t take Geronimo anywhere. He always gets into trouble. Now an ocean voyage is being sabotaged – and one mouse is going to get his whiskers wet! Geronimo and his family have been invited to Lisbon in Portugal, to retrace the sea journey of the great explorer Vasco da Gama. He was the first European to reach India by sea – and now it seems he was also a Stilton ancestor. How exciting! But when the mice set sail, it’s clear that a saboteur is aboard. Can Geronimo sniff out the culprit in this easy-read mystery?