There's a look of relief when he hears Jack is with him, but it fades quickly as Istredd continues - and then his hand goes through the man's shoulder as he disappears and reappears in space. Even knowing this is Horizon, there's a brief sense of dread. He straightens, this time not trying to touch Istredd.

"Not like the labyrinth or other strange places we were sent to?" When the Heralds arrived.

Could they all be asleep and in a mental space?

This is the worst time to be theorizing - when they have little time. He switches gears.

"Jack mentioned masks with key eyes." Right before he was taken.