Enochian: Book 1, Chapter 15
They've got all sorts of ‘safe rooms' down in hell for demons to sorta... store their physical bodies, i guess is the best way to put it, while their spiritual essence slides its way through a crack in the fabric between dimensions â€" and you'd be surprised
The Exile 5 - The End
"you stay close to me," james patted his head, "once we find a safe room i will start writing, and when i am done, we can escape from this place through a linking book." "_what's a linking book?"
Curse of the Shieldfall: The Shadow Below
"well, [i]shit[/i]," she muttered, "i suppose it was too much to ask that it would be back the way we came, in that nice safe room with the wrecked chairs..."