midnight
`` Come up to Hampstead to lunch with us , '' said Lilly to Aaron . `` Ay -- thank you , '' said Aaron . Lilly scribbled directions on a card . The hot , jaded midnight underground rattled on . Aaron and Josephine got down to change trains . Josephine had invited Aaron Sisson to dinner at a restaurant in Soho , one Sunday evening . They had a corner to themselves , and with a bottle of Burgundy she was getting his history from him .