Beyond Wikia

In the center of The Realm, there is a bridge between life and death. Comatose visitors to the Realm remain on the living side, and are able to re-enter the real world. The soul eaters reside on the side of death, and prey on the consciousness of visitors. 

Finale Events[]

The bridge formerly existed, but when HoldenWilla, and Frost went to find it, they found that it was no longer there. On Frost's orders, Holden re-created the bridge using his abilities.

However, it also allowed the soul eaters to cross over to the living side and darken the Realm. And, according to Holden's dream, their next target is to cross over into the living world.