Okay so this will take some explaining.
I am a primary school teacher. (Elementary teacher to the Americans present.)
I have a drama game with my class, where the children have designed, mapped, and governed their own world. As an end of year treat, I have decided to make a game starring the kids, and based in their made up world (Named Bevelle after the FFX city)
General plot:
During a normal day in class, Mr B(Me) mysteriously transforms into an old magical man. He casts a spell which teleports the entire class group across the cosmos to the land of Bevelle. All the children remember their real selves and lives, but are very excited by this new world. We follow Aimee, Abbie, and Niall as they travel Bevelle, looking for their classmates and searching for a way home.
As they find classmates (in their respective countries from the Drama Game) the party are attacked by various monsters. It eventually transpires that the Lord of Imagination, a demonic wizard who lives off the power of imagination, transported the children to Bevelle. Their imagination was so powerful that he was able to actually create the world to make it a real place.
However, the children's imagination was SO strong that being in the world they created made them stronger than the Lord of Imagination. Big climatic battle and BAM they return to the classroom with the adults of their lives none the wiser.