When you opened it, however, something changed. Perhaps it was the air, which seemed a bit more pure. Perhaps it was the ambient noise outside, which seemed subtlety changed. That's when you hear it; a howl. A wolf's howl.
The moment you leave the room you opened the letter in, you find yourself in a new place. It's a small clearing in a forest. Turning around shows that the room you came from is gone. You're now trapped in this place, for better or worse.
Spoiler
Multiple people can join! Normal rules apply, and you can make as many characters as you please.

