He rose up and followed Ricardo into his study, where a young man was nervously pacing the floor. "Mr. Calladine," said Ricardo. "This is Mr. Hanaud." The young man turned eagerly. He was tall, with a noticeable elegance and distinction, and the face which he showed to Hanaud was, in spite of its agitation, remarkably handsome. "I am very glad," he said. "You are not an official of this country. You can advise--without yourself taking action, if you'll be so good." Hanaud frowned. He bent his eyes uncompromisingly upon Calladine. "What does that mean?" he asked, with a note of sternness in his voice. "It means that I must tell someone," Calladine burst out in quivering tones. "That I don't know what to do. I am in a difficulty too big for me. That's the truth." Hanaud looked at the young man keenly. It seemed to Ricardo that he took in every excited gesture, every twitching feature, in one comprehensive glance. Then he said in a friendlier voice: "Sit down and tell me"--and he himself drew up a chair to the table. "I was at the Semiramis last night," said Calladine, naming one of the great hotels upon the Embankment. "There was a fancy-dress ball." All this happened, by the way, in those far-off days before the war--nearly, in fact, three years ago today--when London, flinging aside its reticence, its shy self-consciousness, had become a city of carnivals and masquerades, rivalling its neighbours on the Continent in the spirit of its gaiety, and exceeding them by its stupendous luxury. "I went by the merest chance. My rooms are in the Adelphi Terrace." "There!" cried Mr. Ricardo in surprise, and Hanaud lifted a hand to check his interruptions. "Yes," continued Calladine. "The night was warm, the music floated through my open windows and stirred old memories. I happened to have a ticket. I went." Calladine drew up a chair opposite to Hanaud and, seating himself, told, with many nervous starts and in troubled tones, a story which, to Mr. Ricardo's thinking, was as fabulous as any out of the "Arabian Nights." "I had a ticket," he began, "but no domino. I was consequently stopped by an attendant in the lounge at the top of the staircase leading down to the ballroom.