"What have you on your feet?"
"Felt slippers."
"Are you afraid of the cold?"
A laugh. "Not I!"
"Come with me."
"Where?"
"First to the cellar. Remember that hot-air box from the furnace, that backs the chimney, way up?"
"I looked only at the bricks."
"We'll go and have a look at that box. It just occurred to me that there is a cellar window within two feet of that box."
"Let us hurry. Can you find the way?"