On a dead plateau, under unfamiliar stars, behind a wall of impaled, watchful corpses, an alien god sleeps. If they wake, the Sleeper in the Pyramid will set in motion a chain of events which will bring about CASE NIGHTMARE GREEN, the end of the world.

Now, a small band of intruders has breached the plateau, presumably with the intention of waking the Sleeper. And its the Laundry's job to stop them.

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"The Laundry Files" is the rpg of Charles Stross's "Laundry" books, in which mathematics is magic and a secret UK spy agency - "The Laundry" - battles the forces of the Cthulhu Mythos. This scenario is from GOD GAME BLACK and contains spoilers for The Apocalypse Codex. A full mission briefing is available here