Dial M for Mongoose (Chet Gecko Series)

Chet Gecko's investigations often show him the seamy underbelly of school life, but this case throws him for a loop. A deadly stink bomb is unleashed, a school building falls to rubble, money goes missing from the principal's office, and that's just a start. Chet's endurance for trouble is tested, but so is his loyalty: Someone is trying to get his mongoose janitor pal Maureen DeBree fired. A true-blue P.I. doesn't take that kind of monkey business lying down. Standing up, maybe.

And stand up he will - to some very shifty school bullies. Chet keeps digging for the truth like a mole after an earthworm sandwich. Oh, foolish detective.