I'd always known that when you went through one of these doors, you went to another planet, and that that other planet might be so far away, you couldn't fly there in spaceship in a million years. Somehow, the whole thing had never seemed strange before today.

A head began emerging out of the darkness. It had two large antennae growing out of its forehead, with nothing recognizable as eyes. A mouth in the middle of its face opened in what I hoped was a smile. At least there weren't any sharp teeth.