Lady Muriel kept her countenance admirably while the Duchess proceeded. "I know it by a sort of instinct. When Madeleine first complained of her head, I looked narrowly at her, and I said to myself, 'Measles! undoubtedly measles!' Now, you know, Muriel, though there is nothing dangerous in measles to a young person like Madeleine,--and she will shake them off easily, and be all the better afterwards,--they are very dangerous when taken by a person of mature age. And the fact is, the Duke has never had them--never. When Errington was laid up with them, I recollect the Duke wouldn't remain in the house, but went off to the Star and Garter, and stayed there until all trace of the infection was gone. And he's horribly afraid of them. You know what cowards men are in such matters; and he said just now he thought there was a rash on his neck. Such nonsense! Only where his collar had rubbed him, as I told him. But he's dreadfully frightened; and he has suggested that instead of waiting till the end of the week, as we had intended, we had better go to-morrow." "I think that perhaps under all circumstances it would be the best course," said Lady Muriel, quite calmly. "I knew your good sense would see it in the right light, my dear Muriel," said the Duchess, who had been nervously anticipating quite a different answer, and who was overjoyed. "I was perfectly certain of your coincidence in our plan. Now, of course, we shall not say a word as to the real reason of our departure--the Duke, I know, would not have that for the world. We shall not mention it at Redlands either; merely say we--O, I shall find some good excuse, for Mrs. Murgatroyd is a chattering little woman, as you know, Muriel. And now I won't keep you up any longer, dear. You'll kindly tell some one to get us horses to be ready by--say twelve to-morrow. Stay to luncheon? No, dear. I think we had better go before luncheon. The Duke, you see, is so absurd about his ridiculous rash. _Good_night, dear." And the Duchess stalked off to tell the Duke, who was not the least frightened, and whose rash was entirely fictitious, how well she had sped on her mission.