To help pull off an epic end-of-year-prank before boarding school graduation, model student Lily Hopper must work closely with her ex-boyfriend, for whom she still has feelings, especially when they are caught red-handed and must face the consequences together.

Jackson Greene has a reputation as a prankster at Maplewood Middle School, but after the last disaster he is trying to go straight--but when it looks like Keith Sinclair may steal the election for school president from Jackson's former best friend Gabriela, he assembles a team to make sure Keith does not succeed.

When master prankster Miles Murphy moves to sleepy Yawnee Valley, he challenges the local mystery prankster in an epic battle of tricks, but soon the two join forces to pull off the biggest prank ever seen.

"Claudia's not worried when she hears her newest baby-sitting charge, Betsy Sobak, is a great practical joker. After all, how much harm can one little girl do? Plenty. Claudia breaks her leg as a result of one of Betsy's mean jokes... and now she's talking about quitting the club. Baby-sitting, she says, is just too dangerous. Kristy thinks Betsy needs to be taught a lesson. She also thinks the Baby-sitters are just the ones to do it. Watch out, Betsy...

After lying to spare a friend's feelings, Prilla, a mainland-visiting, clapping-talent fairy, finds herself spending a day as a butterfly herder, while strange things keep happening to her

Pete is good at playing practical jokes on his friends at camp, but they use science to find a way to pay him back

"School's out, and Miles and Niles are running wild in the woods outside town: climbing trees, exploring caves, and, yes, pranking. But these leafy, lazy days of mischief darken when bully Josh Barkin and his cadets from a nearby kids' boot camp discover the merrymakers--and vow to destroy them"--

Karen loves April Fools' Day because that is the day she gets to play tricks on her friends. Now Karen has come up with a joke to play on her whole family. Will this be her best joke ever, or is she in for a big surprise?

When Will hears the legend of Captain Crow's Teeth from his prank-loving older brother, the nine-year-old fears he will be the bloodthirsty pirate's next victim

In the kingdom of Armpit, a young prince with a penchant for practical jokes joins a flatulent, old knight on a quest to find the silent, but deadly source of the Foul West Wind and to vanquish the monstrous Booger