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

An eccentric like all Helmsleys, eleven-year-old Archer escapes his overprotective mother and recruits two friends, Oliver and Adelaide, to help him plan a rescue of his long-lost grandparents, world-famous explorers who disappeared atop an iceberg in the Antarctic.

Twelve-year-old Bobbie travels to the North Pole to remove her brother from Santa's unimpeachable Naughty List in this Christmas adventure--

Geronimo Stiltonix takes MouseStar 1's broken computer to a distant planet to be repaired by a brilliant inventor, but pirate spacecats attack and steal the device, and the spacemice must retrieve it before the machine can be turned against them.

Rory Rooney likes to be prepared for anything, but when he inexplicably turns green and finds himself in an experimental hospital ward with his nemesis, school bully Tommy-Lee Grim Komissky, everyone is baffled but Rory believes he and Grim have become superheroes.

Through a series of letters to his father, a private investigator, fifth-grader PJ Clueless McGee tells of his efforts to discover who stole macaroni and cheese from the school cafeteria.

Carson Fender returns to the Agency after receiving a note in his school lunch informing him that Agent Nineteen has three days left to live, and that there might be someone inside the Agency working against them--

Santa's Workshop Holiday Spectacular at the Colchester mansion is a long standing tradition in Cedarville, however Griffin, Ben, and Antonia are not happy to find that they have been volunteered as elves by their friend Logan and can not get out of it--but this year the pageant seem plagued by frequent electrical outages, and during one of them the valuable antique known as the Star of Prague disappears from the giant Christmas tree, and as they are...

The seventh graders and their Star Wars-inspired Origami finger puppets go on a field trip to Washington, D.C., on what proves to be a very long trip full of shifting alliances, betrayals, carsickness, and sugar rushes.

Trap was entering the Super Chef Contest, which determines the best cook on Mouse Island -- and he was bringing along as an assistant! Slimy Swiss cheese.