Stonehenge, from "A Game of Henge" by Philip Goss

A game of Henge, my masters?
The pieces are set. We lost the box
with instructions years ago.
Do you see Hangman? Or
Clock Patience? Building bricks
the gods grew out of? Dominoes?
It's your move. You're in the ring
of the hills, of the stones, of the walls
of your skull. You want to go?
You want out? Good - that's
the game. Whichever way you turn
are doors. Choose. Step through, so...
And whichever world you stumble into
will be different from all the others, only
what they might have been,
you'll never know.