For all her dynamic energy in a variety of causes, most of them wise, all of them altruistic, Lady Betty had the rare faculty of knowing when to be restful. Tired Cabinet ministers, overworked lords of the Admiralty, leaders in all parties, knew that in Park Lane there would be no questions asked which it would not be possible to answer, that there was always an excellent dinner to be had without frills, a lounge in a quiet room, or, indeed, a pair of pyjamas and a bed if necessary. But since the desperate character of the war with Germany had been driven home into the hearts of the people of London, a change had taken place in the complexion of many private entertainments and the same serious air which was to be noted in the mien of well-informed people of all classes upon the street was reflected in the faces of her guests. Her scientists were engrossed with utilitarian problems. Her literary men were sending vivid word-pictures of ruined Rheims and Louvain to their brothers across the Atlantic, and her Cabinet ministers conversed less than usual, addressing themselves with a greater particularity to her roasts or her spare bedrooms. Torn between many duties, as patroness to bazaars, as head of a variety of sewing guilds, as president of the new association for the training and equipment of nurses, Lady Heathcote herself showed signs of the wear and tear of an extraordinary situation, but she managed to meet it squarely by using every ounce of her abundant energy and every faculty of her resourceful mind.