Bill and Pete and the other little crocodiles in Bill's class would often say "OOOOOOO" in reaction to things their teacher, Ms. Ibis, told them. The crocodiles say "OOOOOOO" in this illustration as the Nile Queen goes by during their class trip down the Nile.
Mrs. Nordland's first grade students at Westmoor Elementary in Northbrook, Illinois, sent thank-you cards, and many of the notes mentioned how much they loved it when the crocodiles said "OOOOOOO."
Mrs. Nordland: Thank you again, Tomie dePaola, for being such a creative, inspiring, and engaging author.
Tomie: Aww, shucks. "OOOOOOO."
Copyright 1987 by Tomie dePaola. From the book, BILL AND PETE GO DOWN THE NILE, published by G. P. Putnam's Sons.