Geronimo Stilton. Books 22 & 24.
2893762
Access Online
Summary/Review:
Presents books twenty-two and twenty-four in the Geronimo Stilton adventure series in which Geronimo is mouse-napped by his old friend Creepella von Cacklefur, and finds himself at Niagara Falls with his nephew Benjamin's class, who are determined to send him over the Falls in a barrel.