Zombie School is a novella written by R. L. Stine. It was first published in 1999 and was the 40th book in the Give Yourself Goosebumps book series.
Description[]
It's hard to get in to Ranewash Boarding School -- and impossible to get out! If you take science, you may get a transmitter implanted in your skin. In gym class, you'll be climbing ropes to escape the piranhas. And don't even think about checking out the detention hall!