“She had a penetrating sort of laugh. Rather like a train going into a tunnel.”

“There's always light after the dark. You have to go through that dark place to get to it, but it's there, waiting for you. It's like riding on a train through a dark tunnel. If you get so scared you jump off in the middle of the ride, then you're there, in the tunnel, stuck in the dark. You have to ride the train all the way to the end of the ride.”

“…it was rather because she felt less happy than she had expected.  She laughed because she was disappointed…”

“If you're being chased by a police dog, try not to go through a tunnel, then on to a little seesaw, then jump through a hoop of fire. They're trained for that!”

“Then he laughed and she laughed. And quivering with the movement of the train, the dead man seemed to laugh too.”

“The light at the end of the tunnel is just the light of an oncoming train.”