In the depths of a place that by all rights shouldn't exist any more, something that by all rights shouldn't be alive any more drifts on the air; in the pitch-black ritual chamber, it looks rather like an array of dim stars, painting dim rainbows on the walls.
The Far Realms are dangerous beyond words, but it has survived for so long that it's got rather good at it.
It completes the ritual and tears open, for a brief moment, a rift beyond the planes.
And a Thing falls through.