When his mother brings home a guinea pig instead of the dog he has always wanted, fifth-grader Rufus is not happy--until the rodent starts acting exactly like a dog.

"Felix has a new best friend! With take-charge Fiona, anything seems possible, and before Felix knows it, she sweeps him into singing and dancing with her as pixies in the Guinea Pig Jubilee talent show. But right after Felix's first-prize triumph, trouble waits in the wings. "Twinkletoes!" someone taunts, and Felix crumbles. Can he pull himself together and face down the bullies? With a little help from Fiona, can Felix find a magic key that unlocks...

While his human Elliot adjusts to his new home and stepfamily, Gizmo, an evil genius guinea pig, searches for a new evil lair where he can plot to take over the world, but Gizmo is constantly thwarted by Elliot's little stepsister Jasmine (who likes to play dress-up), Abuela (who may or may not like to eat cavies), and Wedgie (a Corgi superhero and Gizmo's nemesis).

"A long-haired guinea pig and a naked mole rat may seem like unlikely friends, but Otis and Peanut perfectly support one another's quirks and foibles. A graphic novel in the spirit of Frog and Toad, these three delightful stories explore themes like friendship, grief, fear of change, and belonging, and they do it in a light and humorous way that will warm the hearts of every reader. In "The Haircut," Otis worries about getting a haircut because he's...