Goosebumps Slappyworld Book 11 They Call Me The Night Howler

This is Slappy's world -- You only scream in it! Mason Brady loves comics! He knows every hero, villain, and sidekick. He even draws his own characters. On a trip to his favorite place, the Comic Book Characters Hall of Fame Museum, Mason explores every exhibit. He even comes across the very real Night Howler. But when villains start terrorizing the town, Mason realizes that his whole life is about to change. Will Mason be a superhero or a superzero?