Fluffy, the classroom guinea pig, has a series of adventures when the students in Ms. Day's class celebrate Halloween.

Fluffy the guinea pig enjoys himself when Ms. Day's class has a party to celebrate the one hundredth day of school.

A young guinea pig describes situations that make him miss his parents, how it feels to miss them, and what he can do to feel better.

Guinea pig Sasspants knows something is wrong with ninth-grader Viola, the new pet shop assistant, so when Mr. Venezi goes missing Sasspants and Hamisher put their private investigation skills to the test.

Valentino the guinea pig runs away from Bolivia to find a safe home where people do not eat guinea pigs and do not mistake them for rats.

Having gone home with Maxwell for summer vacation, Fluffy the classroom guinea pig goes swimming, enters a contest, and investigates a jungle.

Eight-year-old Judy tries to convince her parents and classmates that her brilliant guinea pig can do all the tricks which she says it can.

Pickles is nervous about her first day of school, but taking advice from her big brother Ham may not be a good idea.

"Sasspants, Hamisher, and company have never been so raucous at the Mr. Venezi's Pets And Stuff pet supplies shop. This time, there's scuba-diving in the fish tank with the Steves, what appears to be a dragon hiding behind the counter, and Mr. Venezi's insistence that the store has been robbed of exactly sixty-four dollars and forty-two cents"--