A supervillain and the main antagonist in the 25th Goosebumps book, Attack of the Mutant. He acted in just the way the classic supervillain would act. He was deceitful and sadistic and he was really bent on world domination and he was the most fearsome supervillain ever created. He was very sneaky, considering that he was able to hide with his power to transform into anything solid and he was always determined to annihilate. Also, he was very capable of lying. He can transform and teleport.