A young treasure hunter must decipher clues, solve puzzles, and search his school for a long-lost chest filled with decades of confiscated toys.

Ordinary Elementary is anything but ordinary. Below the classrooms are winding, abandoned, underground passages filled with lost treasures. Fifth-grader Graysen Foxx, aka The Gray Fox--finder of secrets, solver of mysteries, and explorer of the unknown--is hot on the trail of the legendary treasure of long-since-retired Principal Redbeard, which includes a decades' worth of confiscated gadgets, rare comic books, first-edition Pok