The boat reached its dock before five o’clock, but the state-room passengers had the privilege of sleeping until seven, so only the excursionists who had been obliged to sit up all night left the boat at once. There were many of these, however—a weary and disheveled lot of individuals, groups and couples straggling along to the dock. They were talking of something that had happened during the night, or was supposed to have happened. Something or some one certainly had gone over the rail, for the splash was distinctly heard, and an excitable passenger had raised the cry of “Man overboard!” The boat had been stopped, but investigation had failed to discover an actual witness to any such accident, although two people were sure they had seen something in the water just after the splash. The captain, however, insisted that it was all the result of some nervous person’s imagination. To Albert and Sidney Kalin these rumors brought sinking hearts and a great dread. It took them a little time to locate the state-room that had been occupied by their father, but a description of him, coupled with the name he had used at the hotel, enabled them to do it. His valise alone was found. Several people remembered the haggard man who had tramped the deck so restlessly. He seemed to be in great mental distress, anxious only to keep away from all companionship, and no one could recall having seen him after the cry of “Man overboard!” Even the captain had finally to admit that it was probable he had lost a passenger, although, of course, no blame whatever attached to him or to any of the boat’s crew. Then came the letter that had been forwarded from the hotel. It was pathetically brief and to the point, as follows: “My Dear Sons: The insurance money will pull you through. It is all that I can give you. Your success is dearer to me than anything else in the world. Your affectionate father, Jonas Kalin. Of course, Dave Murray read the story in the papers—all but the letter. That was brought to him later by Albert Kalin. “We wish to give you all the facts, without reservation,” Albert explained. “Father did this for us to save the firm, to save an almost priceless invention.” The young man choked a little. “We have hoped against hope that his letter might prove to be capable of some other interpretation, or that he may have changed his mind after writing it, and we have left no stone unturned—” “Neither have we,” said Murray quietly. “Perhaps we know more than you.” “Have you got trace of him?” asked Albert quickly, and his face showed a dawn of hope that could not be misunderstood: he actually believed his father dead and would welcome any evidence to the contrary. It was not the expression of a man who was principally interested in the payment of the insurance money, although he was naturally presenting his and his brother’s claim.