"I shan't tell you."
"Oh, do!"
"Well, if you must know, because you won't behave. You give yourself away too openly. Girls, staying at the Y.W.C.A. in Keswick Week, are supposed to—to—to——"
"To what?"
"To get on without men, anyway. Unless they're properly engaged."
"But aren't you ever free?"
"I might be."
"When? I know—to-morrow morning, early. We'll cut the prayer meeting for once, and go and walk by the lake."
"Oh, Paul, if we could!"
"Will you try?"