Gran'pa and I went to Dr. Croft's in a taxi, and Alfred arrived an hour or so later in a Ford van--after which I bade the old man good-bye and good luck. "Don't let Molly worry over me, George," he said. "Everything will turn out all right in the end. I can _feel_ it. 'Phone up Dr. Croft to-morrow and drop in to see me the day after. You won't know me! . . . Au revoir!" I returned home. The day dragged slowly by; so did the morning of the next. At one o'clock I rang up Dr. Croft. "Well?" I asked, as soon as I heard his voice. "How is the old chap?" "Excellent! He refused at first to believe that the operation had been performed. I never met such a man. Now he's actually asking for his pipe." "That sounds healthy! No danger of a relapse, I suppose?" "Practically none. The anæsthetic was the only risk at his age." "Give him my love--and Molly's--and tell him I'll be round for a chat to-morrow." A minute later, Molly and Nanny heard the good news. The former received it joyfully, but the latter a little sceptically--as if convinced that no good could possibly come of such irreverent tamperings with Nature's laws of growth and decay. "I do hope he'll recover," said the poor old soul. "I've missed him a good deal." "We all have, Nanny. But we've suffered in a good cause. So has Gran'pa. It requires some courage to strike out afresh at his age. He's an example to the old men of his generation." A reaction set in at once. I felt not only a sense of great relief, but also one of exhilaration. My curiosity was intense. How soon (if ever) would Gran'pa begin to show signs of approaching youth? Would he rejuvenate mentally or only physically? Would he show merely less tendency to doze and mumble, or would he become the alert and energetic man he was fifty years ago? Supposing the whole affair simply resulted in a mere prolongation of life--stripped of all its zest--what then? Would he, or any of us, be the happier for it? Wouldn't it be rather pointless? I must admit that (quite apart from the monetary reward for my industry) I was in favor of complete rejuvenation--something which would reduce his age to about forty, say. There were big possibilities if this happened; and I wanted to share in them. But, as I had expected, he progressed very slowly at first. When I saw him the day after the operation he was still Gran'pa--as old as ever, and just as deaf. He talked a great deal, and pretended to feel much better already. He even asserted that his appetite had improved--a sure sign of youthfulness! As time went on, however, I noted the coming of a distinct glow in his cheeks, a brightness in his eyes, a clearness in his voice, and an improvement in his hearing. But all these I put down to the few weeks he had spent under the care of a trained nurse, and to the tablets of thyroid extract which he had also been taking. It seemed absurd to attribute any change yet to Alfred's glandular influence.