Monster Blood for Breakfast! - Goosebumps HorrorLand 3 (Unabridged)

Description of the book

For an athlete like Matt Daniels, breakfast is the most important meal of the day. It's also the most dangerous. That's because somebody is about to pull a mean prank. The recipe is simple: Just add Monster Blood.
As if Matt's problems weren't big and slimy enough, a surprise invitation will lead to even more trouble. How long can Matt survive inside a terrifying theme park? Not very long if his friends keep disappearing!