The ice holding the ships fast until the spring of 1848, it was necessary for Captain F. R. M. Crozier, now in command, to abandon them, as they were provisioned only until July. It was evident that the only chance of life was to reach the Hudson Bay posts, via Back (Great Fish) River, two hundred and fifty miles distant. While it would not be possible to haul enough food for the whole party, they had good reasons to believe that they could live in part on the country. Simpson had reported large game as plentiful along the south coast of the island, while Back spoke of thousands of fish at the river's mouth. Arrangements for the retreat were made by landing on April 22, 1848, on King William Land abundant supplies of bedding, tentage, provisions, clothing, ammunition, etc., and a large camp was there established. Sledges were strengthened and boats fitted thereon with which to ascend Back River and if necessary to cross Simpson Strait. Great haste was made, for they were ready to start south on April 25, 1848, on which date the record of Gore was supplemented by another signed by Crozier and his second in command, Captain James Fitzjames. It recorded that Gore had returned to the _Erebus_ from his sledge journey in June, 1847, and was now dead, as well as twenty others. It added: "Sir John Franklin died on the 11th of June, 1847. The officers and crew, consisting of 105 souls, ... start on to-morrow, 26th, for Back's Fish River."[5] Struggling south along the west coast of King William Land, their progress was slow owing to illness, impaired strength, and their very heavy, unsuitable field equipment. Doubtless some one fell out of the sledge-traces daily, and doubtless, with the spirit of heroic Britons, they acclaimed with cheers their final success when they had dragged their heavy boat to the north side of Simpson Strait and thus actually filled in the last gap in the northwest passage. Their provisions ran low and Lieutenant John Irving went back to the ship for other supplies, but his heroic zeal was superior to his strength. He was buried on the beach in full uniform, encased in a canvas shroud.[6] Of his party one at least reached the ship, and died on board of the _Erebus_ or _Terror_, which, according to the reports of the Eskimos, sank later off the west coast of Adelaide Peninsula. Two others of this detachment evidently endeavored to rejoin the main part, but died in an abandoned boat. With hope and patience they waited for the coming of game that would save their lives, and alongside their skeletons thirty years later were found, standing, their muskets loaded and cocked for instant use. Graves and skeletons, boats and tents, clothing and camp-gear silently tell the tragic tale of that awful march, which has been traced from Point Victory to Montreal Island through the heroic researches of Hobson and McClintock, of Hall, Schwatka, and Gilder.