If you were writing that the four friends of "Dr. Heidegger's Experiment" did not get young again, what passage from the story would you use to support your thesis? an, old Doctor invited neet him in his white-bearded Colonel Killigrew, la withered was the Widow melancholy old ortunate in life, ne it was that heir graves. Mr. age, had been a lost his all by a no little better olonel Killigrew his health and nful pleasures, rood of pains, A. P 27: Their eyes grew clear and bright; a dark shade deepened among their silvery locks; B. P 3: If all stories were true, Doctor Heidegger's study must have been a very curious place. C. P 42: But they were young: their burning passions proved them so.