From the book:
Four masks will make us Fox, Dog, Wolf, and Coyote. A flashlight will be our lantern. Gathered around the fire at the end of the world, we will watch the stars go out and decide what the best thing about people was. Coyote won't talk. Mostly.
[...]
Wait, what are we doing?
In this game, four people act out stories with each other while wearing masks and using a flashlight. It is perfect around a campfire or a table in a dimly lit room. Three of us will be characters in the stories and we will speak dialogue and describe actions that we think in the spur of the moment.