“No,” said Henry. “We’ve only got five seats and the twins both want to come and anyway I want to dance with Robin, and Colin’s actress isn’t coming.”

“Well, Stephen could take Mary off your hands.”

“He doesn’t like her.”

“Mary is Henry’s girl,” explained Frid. “Only vaguely, though.”

“Well, she’s quite nice really,” said Henry.

“Charming, darling,” said Frid handsomely.

Roberta suddenly felt rather desolate. She stared out of the window and only half-listened to Henry who seemed to think he ought to point out places of interest.

‘This is Trafalgar Square,“ said Henry. ”Isn’t that thing in the middle too monstrous? Lions, you see, at each corner, but of course you’ve met them in photographs.”

“That building over there is the Tate Gallery,” said Frid.

“She means the National Gallery, Robin. I suppose you will want to see one or two sights, won’t you?”