Falkurien Maw
From Warhammer 40k - Lexicanum
The Falkurien Maw is a supermassive Black Hole surrounded by a molten accretion disc one and a half million kilometers wide. If a ship translates out of the warp in its proximity, it will be trapped and unable to leave.[1]
Sources
- 1: The Buried Dagger (Novel), Interval Three