This door gave on to the end of the cross hall, and the hall ended then, in a roomy window seat, and also held a book rack and table; altogether a comfortable and useful nook, frequently occupied by Gordon Lockwood. The window looked out on the beautiful lake view, as did the great study window, and it also commanded a view of the highroad on which stood, not far away, the Adams boarding-house. Lockwood lodged there, as being more convenient, but most of his waking hours were spent in his employer’s home. A perfect secretary he had proved himself to be, for his prescience amounted almost to clairvoyance, and his imperturbability was exceedingly useful in keeping troublesome people or things away from John Waring. So, he determined to stay on guard, lest a chance caller should come to disturb the Doctor at his work. But Lockwood’s own work was somewhat neglected. Try as he would to concentrate upon it, he could not entirely dismiss from his mind a certain mysterious little face, whose meaning eluded him. For once, Gordon Lockwood, reader of faces, was baffled. He couldn’t classify the girl who was both rude and charming, both cruel and pathetic. For cruelty was what this expert read in the knowing eyes and firm little mouth of Miss Mystery. And because of this indubitable element in her nature, he deemed her pathetic. Which shows how much she interested him. At any rate he thought about her while his work waited. And, then, he thought of other things—for he had troubles of his own, had this supercilious young man. And troubles which galled him the more, that they were sordid—money troubles, in fact. His whole nature revolted at the mere thought of mercenary considerations, but if one is short of funds one must recognize the condition, distasteful though it be. At nine-thirty, Nogi came with a tray bearing water and glasses. Under the watchful eye of Mrs. Peyton the Japanese tapped at the study door and, in response to the master’s bidding, went in with his tray. He left it punctiliously on the table directed, and with his characteristic bow, departed again. At ten-thirty, Mrs. Peyton and Helen went upstairs to their rooms, the housekeeper having given Nogi strict and definite instructions, which included his remaining on duty until the master should also retire. And the night wore on. A clear, cold night, with a late-rising moon, past the full, but still with its great yellow disk nearly round. It shone down on what seemed like fairyland, for the sleet storm that had covered the trees with a coating of ice, and had fringed eaves and fences with icicles, had ceased, and left the glittering landscape frozen and sparkling in the still, cold air. And when, some hours later, the sun rose on the same chill scene its rays made no perceptible impression on the cold and the mercury stayed down at its lowest winter record.