Schools can have myths and legends. Hellman Elementary is no different. However, the legends are little bit stranger. How many schools can say Bigfoot teaches the fifth grade science class? Or that a mysterious frogman hops around the school at night? Who knows what could be lurking behind the locked doors of the school? And going to the principal's office may mean you're never seen again. While the school might be frightening on the inside, it's what is hiding beneath the school that is really terrifying.

Ethan is about to find out how many myths and legends his new school holds as he enters the third grade. When his new friend Grayson tells him about all the strange events at the school, Ethan finds them hard to believe. But then outrageous incidents and unexplained mysteries begin to happen. Ethan and his friends find themselves struggling just to survive the school year without help from some bizarre teachers!