It is a perfectly normal day until an unexpected package arrives. Knock, knock, knock. A young boy must convince his parents that their charming house guest is up to no good. Author and Illustrator Cynthia Stuker combines light-hearted storytelling with engaging illustrations to create an unforgettable adventure for one family and their very mischievous monster. 32 page picture book. Excellent for preschool, ages 2-5.