Once again hauling the boats foot by foot, they found the shoreline ice less imposing. But the bitter reality quickly set in that they were on a death march. The physical rigors of unending exertion in the biting cold were too much for the malnourished body to bear. The worst agony, perhaps more than frostbite, was the sense of unquenchable thirst. Since their portable gas stoves were mostly depleted of fuel, there was no efficient way to produce fresh water from the ice. Men desperately stuffed snow in their mouths to melt a few drops, then shivered with cold. Like a caravan crossing the Sahara, they fought the vestiges of dehydration along with the other ailments. Day by day and one by one, men began to wither and die as the contingent marched south. Shallow graves were dug at first, but then the dead were left on the ice as all energy was conserved for the migration.

Cresting a small snow-covered ridge, Fitzjames held up his hand and stopped in his tracks. Two sledge crews of eight men apiece staggered to a halt behind him, letting loose the harness ropes attached to a wood-planked pinnace. The heavy wooden boat, packed with food and gear, weighed over two thousand pounds. Transporting it was like dragging a rhinoceros across the ice. All of the men fell to their knees to rest, sucking deep breaths of icy air into their starved lungs.

The sky was clear, showering the landscape with bright sunlight that reflected off the snow in a blinding dazzle. Fitzjames slipped off a pair of wire-mesh snow goggles and walked from man to man, offering words of encouragement while checking their extremities for frostbite. He was nearly through the second crew when one of the men shouted.

“Sir, it’s the Erebus! She’s free of the ice pack.”

Fitzjames turned to see one of the seamen pointing toward the horizon. The man, a yeoman’s mate, slipped out of his harness and began scampering toward the shoreline and onto the ice pack.

“Strickland! Stand where you are!” Fitzjames ordered.

But the command fell on deaf ears. The seaman slowed not a step, stumbling and careening over the uneven ice floe toward a dark smudge on the horizon. Fitzjames adjusted his gaze in the same direction and felt his jaw drop. Three leagues distant, the black hull and upright masts of a large sailing ship were clearly visible. It could be no vessel but the Erebus.

Fitzjames stared for several seconds, barely breathing. Strickland was right. The ship was moving, appearing to drift clear of the ice pack.