Elmer, the patchwork elephant, plays an amusing trick on his grey elephant friends.

Matt Daniels battles a mysterious substance called Monster Blood that makes things grow, and then visits HorrorLand amusement park, where some of his friends disappear.

A mischievous bear plays tricks on his friends.

While his brothers play pratical jokes, young sleuth Jigsaw Jones investigates the disappearance of Danika's cat.

"Jailed for a joke. It isn't easy going to jail for a practical joke. Of course, this practical joke left 20 cars wrecked on the highway and two politicians' careers in tatters - so jail is where Harold Künt landed. Now he's just trying to keep a low profile in the Big House. He wants no part of his fellow inmates' plan to use an escape tunnel to rob two banks. But it's too late; he's in it up to his neck. And that neck may just wind up in a noose..."...

"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"--Provided by publisher.

When twelve-year-old Izzy invents a master-prankster brother, her popularity soars at Camp Foxtail until her neglected best friend, Mackenzie, snaps and reveals her secret.

Jigsaw tries to find out who is playing practical jokes in class.

Joe and Frank investigate some pranks around Bayport, leading them to the Red Arrow, a crime grang.