Trouble according to Humphrey

Trouble According to Humphrey.
Trouble According to Humphrey Paperback by Betty G. Birney.
Humphrey loves to solve problems for his classmates in Room 26.
But he never meant to create one.

Golden-Miranda, one of his favorite students.
Gets blamed when Humphrey is caught outside of his cage while she’s in charge.

Since no one knows about his lock-that-doesn’t-lock, he can’t exactly squeak up to defend her.
Humphrey really has his paws full when Don’t-Complain- Mandy-Payne and her family stir up more big trouble.

Humphrey manages to help Pay-Attention-Art and Sit-Still-Seth and even survives a trip to the vet.
But can he clear Miranda’s name without giving up his freedom forever?