[Jack's eyes flick upwards to the ceiling when he finds himself in darkness, and he lets out the slightest sigh of frustration. Not all of them can see in the dark, after all. But he'll have to rely on his partner's ... unusual sensitivities.

He takes a moment to weigh the two options]

They'll expect us to break the seal and take the low road. It's less likely they'll look for us to escape through the roof.

[His eyes scan across the shapes in the room, adjusting, as he remembers where the objects were moments before, creating a mental recreation of the territory] ... Primarily because we'll have to find a way to reach the vent first.