He was no more than safe before he heard the beat of running feet on the pavement, and saw a tall, thin figure dart past his hiding place, and disappear toward Madison Avenue. An instant later another, bulkier shadow appeared more slowly, and paused by the low fence. It was the mysterious person with the beard, and Barry shrank swiftly back, wondering what he meant to do. There was a moment’s pause; then the low gate was pushed open, and the stranger stepped toward the grille. Reaching it, he shook it briskly, but the latch held. From where he had retreated in the shadow, with one arm thrown up to prevent his face from being seen, Barry heard the unknown give a guttural growl of mingled surprise and impatience. A brief pause followed, during which his irregular breathing sounded clear and distinct. Then he turned and walked back to the sidewalk, the gate clicking behind him. For a minute or two Barry did not move, but at length, unable to restrain his curiosity, he stole to the grille and peered through. The stranger was still standing near the fence, gazing intently up and down the street. Presently he disappeared toward Madison Avenue, and Barry, after waiting a few moments, undid the grille and stole out. Peering over the fence, the Harvard man watched the mysterious stranger move slowly down the street, staring keenly into every doorway as he passed it. Finally, at the corner, he paused, glanced swiftly back, stood for some time undecided, then vanished from sight. The instant the man was gone, Barry emerged, and made his way straight back to the hotel. He managed to brush his top hat into some semblance of decency, and rid his coat of the bits of ice and snow which clung to it. Happily the elevator boy was half asleep, and did not notice anything unusual in his appearance, so that Lawrence reached his rooms without attracting undue comment. His first move was to examine the lump on his head, which felt about the size of a billiard ball. He had a feeling that his hair must be smeared and clotted with blood, and was agreeably surprised to find that the skin had scarcely been broken. The weapon, whatever it was, had evidently struck just the right spot to produce momentary unconsciousness, without doing any very permanent damage. Stripping off his clothes, and getting into pajamas and a loose dressing gown, Barry bathed the bump carefully with warm water, then with cold, placed a wet towel against it, and sat down to think over the night’s experiences. They had certainly not lacked interest and excitement. When he started out in that whimsical manner from the Waldorf he had expected nothing quite like this. The last adventure naturally received his attention first. Who was the bearded man, and why had he such an interest in Lawrence? Remembering the distasteful encounter with Tappin at the Waldorf, Barry wondered whether it were possible that the bank president had set his detectives again on the trail.