Outer Planes
From Tardis Wiki, the free Doctor Who reference
The Outer Planes were a cosmic location, possibly on the edge of the universe judging by their name. The Great Old Ones were thought to have originated from the Outer Planes, where a third part of their form was left. (PROSE: White Darkness)
- It's possible that when they shifted into the universe, they had to pass through the Outer Planes.
