"Two smart girls in one small town use their combined genius to liven up their world--one prank at a time"--

"Friends and pranking partners Miles and Niles face a tough challenge when their favorite goat and nemesis, Principal Barkin, is replaced by his stern, no-nonsense father, Former Principal Barkin, who turns the school into boot camp"--

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.

As the Terrible Two face the end of their time together in Yawnee Valley, they are determined to pull a prank that changes the town forever.

"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...

The misadventures of two terrible old people who enjoy playing nasty tricks and are finally outwitted by a family of monkeys.

Mary McScary loves to scare people, but nothing she thinks up seems to bother her cousin, Harry McScary--but Mary will not give up trying.

Ian Hart has always been the kid most likely to be bullied, which is why he appreciates having aggressive Devon as a friend--but when one of Devon's pranks goes terribly wrong Ian finds himself the youngest student in the Juvenile Academy for Noncompliant and Underachieving Students, otherwise know as reform school, and somehow he is going to have to learn how to stand up for himself.

"A popular guy and a shy girl with a secret become unlikely accomplices for midnight pranking, and are soon in over their heads--with the law and with each other."--Provided by publisher.