The region was one of serac where the glacier was puckered up, folded and crushed.
It is heavily crevassed, as though it once formed the serac portion of a glacier.
Retracing the way out of the broken ice, we steered in a south-westerly direction, just above the line of serac and crevassed ice.
For many hours a way was won through a mighty turmoil of serac and over innumerable crevasses with varied fortune.
Whether a stone underfoot gave way, or whether the Admiral's voice brought down a serac of rotten wall, is not clear.