After relating all of the horrible things the school custodian, Fester Smudge, is known to have done, a student whose locker won't open needs Mr. Smudge's help.

A.J. and his friends find out what amazing things Miss Lazar, the Super Custodian at their school, can do.

After suffering a career-ending injury, Tyler Ames finds a maintenance job at a retirement home where he meets Virginia Hutcheson, a patient with Alzheimer's who seems to have the answers he is seeking.

Tom Edison (no, not that Tom Edison) is a hopeful janitor who dreams of becoming a scientist--and Dr. Morice is a shy scientist who dreams of making friends. When an accident at the lab sends them back in time to the stone age, Tom and Dr. Morice must work together to face down cavemen, saber-tooth tigers, and other B.C. hazards, with only one problem: Tom isn't very good at science, and Dr. Morice isn't very good with people. A laugh-out-loud time-travel...