what does "tunnel contracting"mean? what kind of feeling it is? Landry stopped talking abruptly, patches of color high in his cheeks. “With the result that he rode over the edge of a quarry?” Strike suggested. He had said it to watch Landry’s reaction, and was not disappointed. He had the impression of a tunnel contracting, a distant door closing: a shutting down. “Not to put too fine a point on it, yes. And it was a bit late, then, for Yvette to start screaming and clawing at Alec, and passing out cold on the floor. If she’d had an iota of control, the boy wouldn’t have set out expressly to defy her. I was there,” said Landry, stonily. “On a weekend visit. Easter Sunday. I had been for a walk down to the village, and I came back to find them all looking for him. I headed straight for the quarry. I knew, you see. It was the place he’d been forbidden to go—so there he was.” “You found the body, did you?” “Yes, I did.” “That must have been highly distressing.” “Yes,” said Landry, his lips barely moving. “It was.”