"In this wordless picture book, a student is accidentally left behind on a field trip to a volcano island"--

Ranger, the time-traveling golden retriever, has landed in Viking age Iceland, where he meets a girl named Helga, who seems perfectly able to take care of herself--until an erupting volcano and an early arriving baby forces Ranger and Helga to journey through the ash and smoke to find her father and bring him home.

Big Volcano and Little Volcano live side by side in paradise, but when a silly bird drops a coconut (or two) on Little Volcano's crater he blows his top.