This is book number 11 in the My Weird School Daze series.
The weirdness never stops
Oh no A.J.'s mom just got a job, so he has to go to After School Kids' Kare. And Mr. Tony, the guy who runs it, is crazy. He wants to get into the "Guinness Book of World Records" by making the world's largest pizza Will A.J. and the gang be able to tunnel out of the child-care room and escape to freedom? Run for your lives.