Colin: I’m looking forward to to-morrow night.
Gwen: So am I.
[The door opens cautiously and Margaret Heal appears; a woman of about thirty-five; attractive without being strikingly beautiful or pretty; she is looking her best now, in evening dress and cloak.
Margaret: Anybody here?
Gwen: Hullo, Margaret. Come along in. What have you done with John?
Margaret: He’s walking round the square.
Colin: Sounds mathematical.
Margaret: Yes, it’s impossible.
Colin: Why?
Margaret: It’s raining; and he’s got no coat, and slippers. (To Colin.) You ought to go and fetch him in.