Zalithea, carrying a small parcel, had just come out of the shop and was walking away! Jim Sakers experienced a sense of sudden acute exhilaration. The wildly unforeseen had happened! And at last he was going to be of real use to his friend! What it all meant was outside the province of his mental powers. Who this mysterious girl really was who had so hopelessly bewitched Barry he had never been able to understand. Nor could he comprehend how she could possibly have reached Paris without the knowledge of the American authorities. But unmistakably it was Princess Zalithea and none other who walked along before him. Her lithe figure, her graceful carriage, the very turn of her head when she paused to look in a shop window were familiar to the man who had met her many times in New York. From the crowded boulevard into which she had turned on coming out of the perfumers’ she entered a side street. Jim didn’t know the name either of the street or the boulevard. His bump of locality was low. But he knew that he wasn’t going to lose sight of her if he had to follow her around Paris all day! He was turning a problem over in his mind as he tracked the trim, leisurely figure. What should he do if she saw him? Zalithea came out onto another boulevard and waited at the corner of the street for a moment. Evidently she was going to cross. She did so, and Jim was delayed by the eccentric Paris traffic. When he finally ran over, for a moment he lost her. Then, just disappearing around the corner of the next street along, he saw the smart figure again. He hurried to the spot, swung round the corner--and saw Zalithea entering a discreet-looking hotel on the same side. He was in the lobby a minute later--and she was talking to a clerk at the desk! Jim turned his back and stared out into the street through the glass doors. The lobby was small. He could hear every word spoken at the desk. And what he heard gave him the crowning surprise of the morning. “No, madam--” the clerk spoke perfect English--“no American mail has come in yet.” “Thank you. If any comes later will you please send it right up?” _The speaker was Zalithea!_ Astounded--thrown off his guard--Jim turned and met Zalithea face to face! “Princess!” he said. “You remember me!” The girl’s white teeth closed sharply on her lower lip. She nearly dropped the parcel she was carrying, but just managed to recover it. She flushed and as quickly paled. But she looked at him unflinchingly--and he knew her long, dark eyes. “You have made a strange mistake,” she said, evenly. “I am not a princess and I don’t know you.” Jim wondered if he were going mad. The clerk was watching him dubiously, so was a hall porter. “But--” he floundered--“but----” The dark eyes remained fixed upon him inscrutably. “I’m sorry. Forgive me. But it’s miraculous.”