Dan Gutman

Mrs. Cooney, the school nurse, is a knockout -- and A.J. has a crush on her. But are her charms just a cover for her secret identity as an international spy? Will A.J.'s love for Mrs. Cooney win out over his love for the good old USA?

The new lunch lady at Ella Mentry School, Ms. LaGrange, writes secret messages in the mashed potatoes and tries her best to get A.J. and the other students to eat healthy foods.

When boring Mr. Loring retires, A.J.'s class gets a new music teacher who raps, break-dances, and thinks he has what it takes to become a famous musician.

A skateboarding principal offers unusual incentives to his students to motivate them to learn more. Principal Klutz was hanging upside down from the school flagpole! He kissed a pig on the lips! He painted his bald head orange! And now he wants to bungee-jump off the roof of the school, dressed like Santa Claus! In fact, all the grown-ups at A.J.'s school seem to have something wrong with them. What's going on here? What are A.J. and the kids in his...

A.J. and the other students at Ella Mentry School brave trick-or-treating at the school secretary's house, even though it is supposedly haunted, in order to receive the best Halloween candy.

"A. J. and his friends from Ella Mentry School are in for a weird Christmas surprise when they head to the local mall to see Santa Claus"-- Provided by publisher.

Mr. Docker, a new science teacher, is a crazy inventor who blows things up, uses potatoes for power, and has A.J. and his friends wondering whether science is for nerds or is the coolest subject ever.

"Coke and Pepsi McDonald continue on their dangerous cross-county road trip, stopping at strange-but-real destinations in the South and facing such perils as an evil Elvis impersonator, a vat of acidic soda, and a giant recycling shredder"-- Provided by publisher.

Ella Mentary School is having a science fair! Guest scientist Dr. Snow has arrived to help A.J. and his friends conduct their own cool experiments. But what is "the snowman" really planning? And what does STEM even stand for anyway?

Eleven-year-old Harry Mancini lives in the house where Houdini spent his final years, so he has always been interested in the famous magician, and has even learned a few simple magic tricks; he just never expected Houdini to contact him from beyond the grave--and what Houdini wants him to do could well cost Harry his own life.