Wedgie and Gizmo's humans are taking their first family vacation--to a campground by a lake! And their pets are too destructive to stay home alone. Wedgie the corgi is super-excited. He can't wait to chase squirrels and poop in the woods! But Gizmo, the evil genius guinea pig, has no time for games. He must convince the forest critters to join his Evil Horde and help him take over the world--one tent at a time. Muh-hah-hah!--

Lola brings the class guinea pig home for school vacation and when he escapes Charlie tries to help her find him before anything happens to him and before Lola has to go back to school.

"Nutmeg is celebrating her birthday with a very special picnic in the park. But when she starts to feel dizzy, the festivities have to stop. Luckily, Dr. KittyCat and Peanut are close at hand to help, so hopefully Nutmeg can have a happy birthday after all!" -- Back cover.

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).

When an annoyingly cute rabbit takes over as Class 5-B's favorite pet, Fuzzy the guinea pig must prove he's the best by taking the pets on a field trip.

"The guinea pigs are having a party, and like many children's birthday parties, things aren't going perfectly. But in the end everyone has a good time and the party is a success!"--

Fluffy endures a bath and shampoo at school on Valentine's Day, but when another guinea pig named Kiss is placed in his play yard, his patience snaps.

When Pigcasso, the class guinea pig, stays the weekend at Louise's house, mayhem ensues after he goes missing.

Guinea Dog:
Rufus has been dreaming of getting a dog. His best friend has one. His worst friend has one. But his dad has a few objections: They whine. They gnaw. They bark. They scratch. They beg. They drool.
Rufus pays no attention when his mom offers her think-outside-the-box suggestion, because she can't be serious. She can't be.
She can be. And she actually comes home with a guinea pig. And if Rufus's dad thinks dogs are a problem,...

"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...