Ned entered a series of tunnels until he reached the exit.
The Hive was made with many different exits but only a handful of them leads to the real passage outside and inside.
From outside, it looks like a natural cave, but if one wondered deep enough, they would stumble in many different forks until they reached a place where-n Goblins and other magical creatures were waiting as guards and would maul everyone not invited.
Ned was already known inside the Hive as one of them. But outside, wherein beasts with no hierarchy and less sentient—he was their enemy.