Hey there - open up! Something outrageously funny is knock-knocking at your door. Knock-knock. Who's there? Boo. Boo who? Well, you don't have to cry about it! Knock-knock. Who's there? Flea. Flea who? Flea blind mice. this collection is packed with yuks for four to seven-year-olds.

Silly Knock-knocks 2001, Sterling Juvenile, New York

ISBN-13: 9780806980157