Colleen A. F Venable

Sasspants, the reluctant gunea pig private investigator, is drawn into another mystery by Hamisher the hamster who believes there is a ghost in the pet shop.

Twelve-year-old Katie now knows her neighbor Madeline is also the Mousetress, the city's most feared villain (or most misunderstood superhero), and she is ready to become the super sidekick she always wanted to be.

When guinea pig Sasspants leaves Mr. Venezi's pet shop to live with Detective Nichols, and hamster-detective Hamisher retires, the case of the missing bookstore cat must be solved without their help.

"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"--

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.

Amanda's seemingly perfect life is turned upside down when she realizes she has a crush on her best friend, Cat, and uncovers a secret held by her father that could tear her family apart.

Zita is determined to find her way home to Earth, but her exploits have made her an intergalactic megastar, and as her true self is eclipsed by her public persona, she faces a robot doppelganger, unsure of who she can trust.