Claudia takes a baby-sitting job looking after Betsy, a girl who is known for her practical jokes, and when one of Betsy's pranks results in a broken leg for Claudia, her baby-sitting days may be through.

Clara Shin lives for pranks and disruption. When she takes one joke too far, her dad sentences her to a summer working on his food truck, the KoBra, alongside her uptight classmate Rose Carver. Not the carefree summer Clara had imagined. But maybe Rose isn't so bad. Maybe the boy named Hamlet (yes, Hamlet) crushing on her is pretty cute. Maybe Clara actually feels invested in her dad's business. What if taking this summer seriously means that Clara...

Brain and Francine devise the perfect plan to get even with Muffy after she bribes the judges at the science fair.

"For an athlete like Matt Daniels, breakfast is the most important meal of the day. It's also the most dangerous. That's because somebody is about to pull a mean prank. The recipe is simple: just add Monster Blood. As if Matt's problems weren't big and slimy enough, a surprise invitation will lead to even more trouble. How long can Matt survive inside a terrifying theme park? Not very long if his friends keep disappearing!"--Container.

David can't wait to go back to school and get far away from his trickster neighbors. But he's in for a surprise when a set of equally prank-loving triplets move onto his block-and into his class! Now the twins and triplets are battling for control of the playground and David is stuck in the middle. Can he end the prank war before recess gets cancelled for the whole year?

Fourth-grader Sylvie Scruggs is old enough to join her town's new junior ice-hockey team, and she is a really good skater, even if she does have a tendency to close her eyes when she shoots, but fifth-grader Jamie Redmond does not like younger kids on the team, and when someone starts pulling pranks on Sylvie she is convinced that Jamie is responsible--and she enlists the help of her friends to prove it and get even.

While baby-sitting for practical joker Betsy Sobak, Claudia breaks her leg as a result of one of Betsy’s pranks and wants to quit the club, prompting Kristy and the other baby-sitters to teach Betsy a lesson.

Odawahaka has always been too small for Maggie's big scientific ideas. Between her stuck-in-a-rut mom, her grumpy grandpop, and the lifetime supply of sludgy soda in the fridge, it's hard for Maggie to imagine a change. But when Lena moves in with her creative spirit and outrageous perspective, middle school takes off with a bang. Someone starts pulling the kind of pranks that send their rule-loving new principal into an uproar-complete with purple...