Monster Blood for Breakfast! is the 3rd book in the Goosebumps HorrorLand series.
Synopsis[]
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!