It took some time before the whole of the party were collected on the beach. It was then seen that they were making arrangements for coming off. Jack felt considerable anxiety about the matter; the surf had greatly increased since they went on shore, and even then one of the boats had been lost. Now all depended upon one boat, which must of necessity be heavily laden. He was not quite at his ease, however, with regard to the ship; she was much closer inshore than any sailing vessel would have ventured. Though he knew that the screw would enable him quickly to gain an offing, he had not as yet that thorough confidence in its powers which long experience could give. Nearly all his officers, and a large portion of his crew also, were away; indeed, he had never before been so short-handed. However, nothing could be gained by delay. He made a signal for the boat to come off as soon as possible, a line being carried from the first lieutenant's boat outside the surf to the shore, and by its means the small boat was to be hauled through the breakers. First a portion of the blacks were placed in her, when, the boatswain taking his seat in the stern, with four hands to pull, she, with her living freight, was shoved off. Now she rose to the top of a sea which rolled in, and now she sank into the hollow between that and the following sea, which so completely hid her from sight, that it appeared as if she had gone down. Jack heard one of the youngsters crying out, "She's lost, she's lost!"--but no; once more her bow emerged amidst the foaming waters, and on she came towards Higson's boat, his crew hauling away manfully at the tow-line. Jack breathed more freely when he saw her alongside, and the blacks being transferred to the large boat. The instant they were out of her, she made her way once more to the shore. A second cargo was now embarked, and the process was repeated, happily without any accident. "She must make two more trips before they are all off," said Jack to the surgeon, who was standing near him. The third was accomplished as safely as the other two. "The rest will have no difficulty in embarking, I hope," observed the surgeon. "The sea has been rapidly getting up," replied Jack; "I wish that they were all safe on board." The fourth and last trip was about to be made; even the ship was much less steady than at first. As he took a glance to the eastward, he observed that the foam-crested seas which rolled in had increased in height. Every man on shore had embarked, and Higson's crew now began to haul in on the line. As they were doing so, a huge sea which came rushing on struck the boat, sending many a bucketful into her, and then, with a thundering roar, hissing as it went rolling on, caught the smaller boat, which had by that time performed half of her passage. Down it came upon her; the next instant the men at the warp were seen to come toppling down backwards--the rope had parted.