A shot in the dark?

Well, let's face it - everything's "in the dark here" - I think I will invoke a Pet Shop Boys song next time around... anyway

The shot in question, is part of the 5 small panels, which I haven't focused on so far...

As these give more of a clue as to what might await us in the next page - The most interesting thing about the top panel taken on its own its is complete dichotomy with its other half on the next page, There is not very much overlapping here at all, so again a whole panel making a purely stylistic point about darkness and duct filled compartments.

But in the 5 panels below we have by stark contrast almost a full on action sequence - which ends in a shot being fired - but why

Find out - on the next page