A lion, a great white shark, and a timber wolf, all meat-eaters who have been hurt by the cruelty of plant-eaters, form a support group which has limited success until their newest member, a great horned owl, shares some advice.

Twelve-year-old Vincent and his fellow members of the Captain Stupendous Fan Club help out when someone new becomes Earth's most famous superhero, without knowing anything about him, just as evil Professor Mayhem and his robot arrive in Copperplate City.

"Classmates Kelsey, Becca, and Leo have nothing in common--until they rescue three kittens and form a secret club to help animals"--

For Lily, it's the worst first day of school ever. Who would want to be friends with the new girl, whose debut act is to throw up on the playground (on somebody's shoes!)? Fortunately, quirky Darby comes to the rescue. Darby likes frogs and candy and oddball stuff, and soon she and Lily have formed their own club -- the Rizzlerunk Club. But before you can say "BFF," Darby's former best friend, mean-spirited Jill -- who had moved to London -- returns...

To his great surprise, uncool eleventh-grader Max Cobb is invited to join the Chaos Club, an exclusive group of students responsible for some of the biggest pranks at his high school.

In a post-apocalyptic world, AV (Anti-Violence) Club members Tip, Mindy, Owen, and Xen develop semi-super powers and use them to try to save their middle school.

Otto Waddle Junior High School is worse than ever. Tip and his geeky friends Mindy, Owen, and Xen have finally come into their superpowers--well, their mediocre powers--and now have a whole new cast of impersonators to take on. Their foursome is being challenged by a rival group of students who are pawns in Darth Susan's evil plot against them. If middle school has any chance of survival, Tip and his friends must take their unusual powers to a whole...

Starting a blog where people can share cute pet photos and stories, Janey receives a heartbreaking photo of an abandoned dog and enlists the aid of her friends to start a pet rescue club, in a story based on a true ASPCA rescue.

Ziggy and his friends form a clubhouse after someone vandalizes their basketball court, and they soon uncover a clue that may tell them who did it.

On a cold, dark night perfect for scaring, Fran is making a valentine, causing other members of Fright Club to howl and hiss over the idea of being in love.