Mr Nitrogen And The Elementary School Minotaur

In this one-shot, Henry Hamilton has been asked to substitute for a teacher at his old elementary school. Things should go well for Henry. But then things get a little crazy when a minotaur comes out of nowhere and starts wrecking havoc on the school library! Can Mr Nitrogen stop this Greek monstrosity, or is this going to become a one-sided bullfight?

Mr Nitrogen created by Tony Garcia