It was a day or two after the conversation in the swimming-bath that a letter addressed to Bertie Heasant slid into the letter-box at his home, and thence into the hands of his mother. Mrs. Heasant was one of those empty-minded individuals to whom other people’s affairs are perpetually interesting. The more private they are intended to be the more acute is the interest they arouse. She would have opened this particular letter in any case; the fact that it was marked “private,” and diffused a delicate but penetrating aroma merely caused her to open it with headlong haste rather than matter-of-course deliberation. The harvest of sensation that rewarded her was beyond all expectations.