Attack of the Mutant is the twenty-fifth book in the original Goosebumps book series. It was released in 1994. The illustration on the cover shows the Masked Mutant outside of his headquarters.
Attack of the Mutant is the twenty-fifth book in the original Goosebumps book series. It was released in 1994. The illustration on the cover shows the Masked Mutant outside of his headquarters.