Monster Blood IV

Even Ross can't forget about Monster Blood—the evil green slime that never stops growing. It can turn ordinary Pets into ferocious Animals and twelve-year-old Kids into freakish giants.

But now there's a new kind of Monster Blood in town. It comes in a can just like the others. Only difference is this slime is blue instead of green. And instead of just growing, it's multiplying—into terrifying blue creatures with razor-sharp teeth....

R.L. Stine is the most popular author in America. He is the creator of the Goosebumps, Give Yourself Goosebumps, Fear Street, and Ghosts of Fear Street series, among other popular books. He has written more than 100 scary Novels for kids. Bob lives in New York City with his wife, Jane, teenage son, Matt, and dog, Nadine.