Fictional generator
From Tardis Wiki, the free Doctor Who reference
The Celesti fictional generator was a device created by the Celestis. It was capable of altering reality in a fundamental way, allowing the user to break all sorts of laws of nature, turning imagination into reality (and vice-versa). The generator was used to bring H. P. Lovecraft's Elder Things into existence on Earth around twelve million years BC. (PROSE: The Taking of Planet 5)