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Ratnip befriends a pet guinea pig in this sixth book of the chapter book series from the author of Good Dog.

Ratnip ventures off the City’s streets and into an apartment building to visit Diana, his pet guinea pig friend. Ratnip is very impressed by Diana’s luxurious life in her pet house, but Diana is bored and itching for adventure. And adventure is something that Ratnip knows a thing or two about!

With easy-to-read language and illustrations on almost every page, Ratnip chapter books are ...