"We are all on board, Alick, except Owen," said my father, coming into the pilot-house. "He should not keep us waiting." "Perhaps he has decided to go in the other steamer," I suggested. But I had hardly spoken the words before Owen came on board. He did not seem to be in despair at his separation from his "bright particular star," and was in excellent humor when he joined us in the pilot-house. "Where are the rest of your party, Owen?" I asked. "Merciful hotandsplosh! Haven't you found out yet that they are going on the Islander?" demanded Owen. "I haven't seen them go on board of her yet," I added. "They took a carriage to the wharf near the boat-house, and I took one to come here," replied Owen. "They must be on board of her by this time." "I think not. The Islander has gone down the river," I answered, as I ordered the fasts to be cast off. I backed the Sylvania on the stern line to clear her from the wharf, and then rang to go ahead. Our voyage around Florida had actually begun, and I was duly exhilarated by the fact. The Islander had gone around the bend of the river, and I could see only her masts and rigging. The wind was blowing fresh from the southwest, and I was not a little astonished to see that her crew were shaking out her fore-topsail. This did not indicate that her captain intended to return to the wharf for his passengers. "Colonel Shepard and his family must have gone on board of her at least a quarter of an hour before seven, Owen," I said, unable to account for the movements of the Islander in any other way. "But they did not leave the colonel's house till five minutes of seven--at the same time I started to come here," replied Owen. "What has happened? What is the matter?" "I don't know that anything is the matter," I replied. "The Islander got under way about half-past six, and I supposed she was going to take a turn on the river before she went up to the wharf. Instead of that she has been moving steadily down the river since she got up her anchor; and there she is, three or four miles on her way to the ocean." "Sylvania, ahoy!" shouted some one on the shore. On the pier, near the club-house, were the Shepard party; and it was the colonel who had hailed us. They seemed to be quite as much astonished as we were. I ran the steamer up to the wharf. CHAPTER VI. A LIVELY CHASE. In a few minutes our bow and stern lines were fast to the wharf where the Shepards were waiting for their steam-yacht. Owen leaped ashore before the vessel was fairly alongside, though he had not yet come to a full comprehension of what had happened. He knew something was the matter, but he could not tell what it was.