While the Sea Lion of Oyster Pond was running along the margin of the ice in the manner just described, and after the blink to the westward had changed to a visible field, making it very uncertain whether any egress was to be found in that quarter or not, an opening suddenly appeared trending to the northward, and sufficiently wide, as Roswell thought, to enable him to beat through it. Putting his helm down, his schooner came heavily round, and was filled on a course that soon carried her half a mile into this passage. At first, everything seemed propitious, the channel rather opening than otherwise, while the course was such--north-north-west--as enabled the vessel to very long legs on one tack, and that the best. After going about four or five times, however, all these flattering symptoms suddenly changed, by the passage's terminating in a _cul de sac_. Almost at the same instant the ice closed rapidly in the schooner's wake. An effort was made to run back, but it failed in consequence of an enormous floe's turning on its centre, having met resistance from a field closer in, that was, in its turn, stopped by the rocks. Roswell saw at once that nothing could be done at the moment. He took in all his canvass, as well as the frozen cloth could be handled, got out ice-anchors, and hauled his vessel into a species of cove where there would be the least danger of a nip, should the fields continue to close. All this time Daggett was as busy as a bee. He rounded the headland, and flattered himself that he was about to slip past all the rocks, and get out into open water, when the vast fields of which the blink had been seen even by those in the other vessel, suddenly stretched themselves across his course in a way that set at defiance all attempts to go any further in that direction. Daggett wore round, and endeavoured to return. This was by no means as easy as it was to go down before the wind, and his bows were also much encumbered with ice; more so, indeed, than those of the other schooner. Once or twice his craft missed stays in consequence of getting so much by the head, and it was deemed necessary to heave-to, and take to the axes. A great deal of extra and cumbrous weight was gotten rid of, but an hour of most precious time was lost. By the time Daggett was ready to make sail again, he found his return round the headland was entirely cut off, by the field's having come in absolute contact with the rocks!