[He always knew that there was something very off about Stein, even before this started happening. It was the voice, so similar to another scientist who took things too far.

But he's distracted by that offer. It's things like this which just go to support Gabriel's claim that he wants to be a better man, not many relentless killers would make that plea with such sincerity.]

...okay, fine. But not for long, I don't want you wearing yourself out in here.

[Not that he's at all heavy to carry.]

Have you tried putting your hand on the left wall and following that? It might take us towards the centre, at least I think that's how mazes work.