"It sure is good to get back," he murmured, picking up his bag. "Someway the very air tastes different. Gosh almighty. It don't seem like two years, though." Abruptly the light went out of his eyes and his face clouded. No wonder the time seemed short when one of those years had vanished from his life as utterly and completely as if it had never been. Whenever Stratton thought of it, which was no oftener than he could help, he cringed mentally. There was something uncanny and even horrible in the realization that for the better part of a twelve-month he had been eating, sleeping, walking about, making friends, even, like any normal person, without retaining a single atom of recollection of the entire period. Frowning, Buck put up one hand and absently touched a freshly healed scar half-hidden by his thick hair. Even now there were moments when he felt the whole thing must be some wild nightmare. Vividly he remembered the sudden winking out of consciousness in the midst of that panting, uphill dash through Belleau Wood. He could recall perfectly the most trifling event leading up to it--the breaking down of his motor-cycle in a strange sector just before the charge, his sudden determination to take part in it by hook or crook, even the thrill and tingle of that advance against heavy machine-gun fire. The details of his awakening were equally clear. It was like closing his eyes one minute and opening them the next. He lay on a hospital bed, his head swathed in bandages. That seemed all right. He had been wounded in the charge against the Boche, and they had carried him to a field-hospital. He was darned lucky to have come out of it alive. But little by little the conviction was forced upon him that it wasn't as simple as that. At length, when he was well on the way to recovery, he learned to his horror that the interval of mental blankness, instead of being a few hours, or at the most a day or two, had lasted for over a year! Without fully understanding certain technical portions of the doctor's explanation, Stratton gathered that the bullet which had laid him low had produced a bone-pressure on the portion of his brain which was the seat of memory. The wound healing, he had recovered perfect physical health, but with a mind blank of anything previous to his awakening in the French hospital over a year ago. The recent operation, which was pronounced entirely successful, had been performed to relieve that pressure, and Stratton was informed that all he needed was a few weeks of convalescence to make him as good a man as he had ever been.