The Mysterious principle

As a school explodes, Harry tries to save his own skin as well as all 598 children at his school. But getting trapped under piles a piles of rock isn't that very easy to get out of. Hearty discovers that the missing items are really only in the hands of an evil mastermind.Dr. Strange Glove. But as Harry thought that Dr. Strange Glove was only a principal, he learnt by making lots of mistakes. And in the end unravelling more than a few mysteries about the schools past.