They went, and though Irene did not turn her head she knew that they had left the room, and her heart sank unaccountably. But she went on playing with tireless fingers, and the gay, sweet music floated deliciously out on the balcony where the young man was saying in a low voice to his companion: "I must confess to an almost feminine curiosity regarding your promised story of your beautiful _protege_." "You wish to hear it now?" said the lady, smilingly. "Yes," he admitted, frankly. "After all there is little to tell," she replied. "I know actually nothing of her except that she is a beautiful, fascinating mystery." "A mystery--how?" he asked. "I will tell you," she said, "for I do not suppose it is any betrayal of confidence. If I do not tell it you will hear it from others who love her less than I do." "No one could appreciate your confidence more than I will do," he said, eagerly. Mrs. Leslie's heart beat quickly. She believed that Mr. Kenmore held the key to the mystery she had promised to unravel for Clarence Stuart. She determined to tell him Irene's story, in the hope of eliciting a like confidence. "It is nearly four months now since we left Richmond for Italy," she began. "We sailed in Mr. Stuart's own yacht." "Yes. I saw that fact duly announced in the Richmond papers," he observed. "But, pardon me for having interrupted your story. Please go on." "It was the tenth of June when we left Richmond--I like to be particular as to dates," said Mrs. Leslie. "Well, it was lovely weather, and we all planned to get up early the next morning and see the sun rise over the sea. We did so, and as you may be aware, it was a glorious sight; but we only got one glimpse of it, for its first beams showed us a more tragic and interesting sight." Mr. Kenmore caught his breath, and gazed eagerly at the speaker. "It was a loud scream for help that first attracted our attention," said Mrs. Leslie. "The sound was not very far away, and we all turned instinctively toward it. To our horror we saw on the level, sun-lighted waves a floating plank, with a human figure clinging to its frail support. Literally, there remained but one plank between her and eternity." "Ah!" exclaimed Guy Kenmore, with a shudder. "Mr. Stuart is one of the bravest men in the world, I think. He immediately sprang over the side of the yacht into the sea, and swam toward the floating figure. Before he reached her she lost her hold of the plank, and sank under the water. Mr. Stuart instantly dived, and brought her up in his arms." "_He_ saved her life. How strange," exclaimed Mr. Kenmore, as if speaking to himself. "Do you think so?" she asked, looking at him keenly. "Why strange, Mr. Kenmore?" "I beg your pardon. I did not express myself properly," he said, biting his lips nervously. "Well, Mrs. Leslie, do you mean to tell me that the heroine of that romantic episode was the beautiful Miss Berlin?" "Yes, it was she," replied Mrs. Leslie.