There's Something in My Attic in Bloomington, MN

Uh-oh, there might be something creeping around in the attic. Could it be a monster?
After a little girl hears something snooping around in the attic when she’s sleeping, she decides to investigate. How can she sleep when something is making creaking noises and stealing her toys when she’s not looking?
"In typically zany Mayer fashion, an intrepid girl confronts a resident nightmare with delightfully unexpected results."—
Publishers Weekly
"The story is satisfying, humorous, possibly bibliotherapeutic, and significantly different from previous titles to justify making room on the shelf for this nightmare as well."—
School Library Journal