So he goes into the corner, opens the door again, and verifies that Isaac’s still dead (which might seem a safe enough thing to assume; but with Isaac, you never know). He leans his head and shoulders into the box now, and checks under Isaac’s armpit: still tepid. Looking up, he has a full view of the back of Catherine Barton’s bodice and all of Star Chamber beyond. The black screen darkens everything somewhat, but his eyes soon enough adjust. No one, of course, can see him or Isaac.