“We changed places,” said Jane, “just as you and Mr. Ember came home. I shut Renata’s door just as you opened the door of the flat. I was in the hall when the lift stopped.”

“Then I think I know how you did it,” said Molloy. He seemed interested. “But I’d like to know who put you up to it; and I’d like to know who gave the back entrance away; and I’d like to know how Renata, who hasn’t the nerve of a mouse, got down that blamed fire-escape alone.”

Jane dimpled again.

“You do want to know a lot, don’t you?” she said.

There was a pause. Then Jane said:

“And now, what happens next, please?”

“That,” said Molloy, “is just what I’m wondering.”

“I ought to be getting back, I think,” said Jane.

“Ah, ought you now?” said Mr. Molloy thoughtfully.

There was another pause. Jane thought she would leave Mr. Molloy to break it this time. She sat considering him. Her eyes dwelt upon him with a calm scrutiny which he found extremely embarrassing. The longer it continued, the more embarrassing he found it. In the end he said: