[quote=@Dawnscroll]
[@Kho] Hells of Time? Whuzzat?
[/quote]

That's where naughty gods go >.>

In all seriousness, it's a place beyond The World, you can consider it a World of its own, or a conglomeration of Worlds. It is a thing so horrific that the gods who have entered it have either been destroyed, been warped beyond comprehension (and thus turned into maddened godbeasts of tremendous power) or something along those lines.
The story goes that Vowzra was stuck there prior to his arrival in Mk.I, and survived intact purely due to his portfolio.