Julia Donaldson's Gruffalo is a story with lots of humor, cool rhymes and text. It is a great story to act out with funny voices. Check out these DIY: Wooden spoon Gruffalo puppets. How cute and easy for small hands to use!
This is a fun case by case book that kids will know most of the answers to the crimes. The fun one was Humpty Dumpty, of course, but the others were cute too. This would be good for older Elementary School kids visiting - Just share 2-3 cases with them and have them try to solve the crime.