Runaway Ralph is a book by Beverly Cleary. The main characters are Ralph S. Mouse, Chum the hamster, Garf the boy, Sam the watch dog, and Catso the camp cat.  This story is about a mouse that has a motorcycle that runs away looking adventure.

My favorite part is when Catso tries to get Ralph because Catso knocked a lot of stuff down. Catso lets Ralph escape and then tries to kill him. Catso knows that Ralph is alive.

The biggest problem Ralph faced is running away because there are a lot of things in the world. The world is very big Ralph is very small. There is lots of danger for Ralph.  I think Ralph learns not to runaway and it is very scary.