All it took was a matter of seconds, maybe 6 seconds, for Dustin to be swallowed by the hole that had appeared above in the sky.
The way Eir explained it was that it was something of a crack in space-time through which the world they were currently in was connected to the one he came from. Because of this, the region within that crack was both infinite but yet finite and close, and this was a raw and the most natural pathway for travel through dimensions and planes. All the demon meat Dustin had being eating for several months, or years, were all so that he would be able to survive the pure energy turbulence within the crack.
