Geronimo Stilton Reporter Vol. 18Geronimo Stilton Reporter Vol. 18 follows Geronimo and the gang as they set sail in the Arctic seas to help his old friend, Professor Ranoble, with her ice research. However, the captain of their ship may be up to something big, especially with frequent orca attacks. The story is based on the Geronimo Stilton animated series episode "Attack of the Killer Whale ("Mamma, che orca!"), written by Mathilde Maraninchi & Antonin Poire and storyboarded by