Now fans of Willie the wolf can enjoy him and his nine furry friends in this three book set. The books in this set include: Ten Little Monsters Standing in a Line. The counting book that started it all, Ten Terrific Monsters: A Hidden Item Book. The book that continues the adventures from where Ten Little Monsters in a Line ended, Finally How to Draw the Ten Little Monsters, the book for children ages 8 and older that shows how to draw all off the ten little monsters. Take Willie and his friends’ home with you today.