Truth or Dare...
hahahahaha. Its basically a game of Truth or Dare.. the people you can dare/truth (or the people you can have dare/truth someone) can either be from Percy Jackson Or Harry Potter.
In the story, everyone is gathered around at a winter camp and we're playing Truth or Dare in the middle of winter.. So have fun!
The Game Begins
Percy: "I Dare you to run around in just your boxers and stick your toungue to the flag pole."
Harry: "alright." Runs around in his boxers then sticks his toungue to the flagpole.. it gets stuck and now its his turn to truth/dare someone....