Instead of going to the bad place, Dean and Sam wind up in the world of The Magic School Bus! Spoilers for season 13. A lot of dead/gone people are in this, so don't worry. Ms. Babena is a mix of my science teacher, who told us if we do this that she should be Ms. Frizzle, and Rowena. One-shot. Rated T to be safe. This story was originally for our science class.