She nodded to the maid with the air of a frequent visitor and continued on up the stairs. The incident gave Greg an idea. As she held the door open for him to pass out, he gave the maid a dollar. She accepted it as one who had a just sense of her own worth. Still with the air of a saddened relative Greg said: "I expect you'll see me often after this. Which house is number 16 in?" "This house, sir. First floor front." Greg got in the flivver and had Hickey take him down to Columbus Avenue where he searched for a delicatessen store and bought a pot of jelly. Leaving Hickey at the corner he returned to the sanitarium on foot. When the maid opened the door to him, he nodded as to an old acquaintance, and holding his pot of jelly carefully upright said: "I'll go right up." At first she made as if to block the way, but his smiling assurance overawed her. She gave way. He mounted deliberately, and passed out of sight around the bend to the first landing. There were four doors on the landing. They were numbered, but even if they had not been, "first-floor front" was an exact description to any one familiar with New York houses. Greg knocked on the door of 16 with a fast beating heart. The door was opened by Bianca in her nurse's dress. Things happened quickly after that. She instantly recognized him and attempted to slam the door, but Greg had put his foot in the jamb. Through the crack he caught a glimpse of Amy sitting in a disconsolate attitude by the fire. Putting his shoulder against the door he heaved with all his strength and Bianca gave way suddenly. He walked into the room. Bianca ran out into the hall screaming for help. Amy sprang up. Her set face softened wonderfully. She instinctively put out both her hands and Greg took them in his. His heart yearned over her, so little, so distressed, so plucky withal! Neither of them recollected the Castilian youth. "My sweet!" he murmured, "you're all right?" She took the endearment as a matter of course. They knew they had but a fraction of a minute to themselves, and they spoke swiftly. "I'm afraid!" she murmured with trembling lip. "If you had seen his face! Like a wild beast's! I don't know what he intends. He's sending me south to-morrow, in a private car under guard--Bianca--those men!" "You shan't go, if I live!" said Greg. "Listen! I'll be thrown out of here directly. Do those windows open?" "Yes." "Where does that door lead to?" "The bathroom." "That has a window over the front door?" "Yes." "Good! I'll be back for you after one o'clock to-night, with a ladder, understand? Be on the lookout. When you see me drop a handkerchief, throw up the bathroom window and climb over the sill. Don't let them give you any dope." She nodded. By this time help had reached Bianca. Dr. Emslie, two white-coated orderlies, and Bianca herself came tumbling back into the room. "There he is!" cried Bianca. "An intruder! Throw him out!"