Bendon Publishing Monster Mayhem (Pat and Sound Stories) It's Monster Mayhem in this Pat and Sound Story manufactured by Bendon Publishing Touch the monsters and hear their noises (just remember to turn on the switch on the book's back cover) Suitable for ages 3 and up, the book measures 8-1/4'' x 8-1/4'' Manufactured by Bendon Publishing International, provider of entertaining, high quality books and activities for children