In their weakness, delirium gripped their half-mad brains, yielding new strength to fight the snow fiend.

Aching in every joint, trembling from fatigue, they dare not rest an instant.

The wind, veering more to the east, lashed their faces like a whip.

They crouched behind the horses to keep out of the sting of it, crunching the snow, now in deep drifts, under their half-frozen feet.
Wade, a young fellow not overly strong, fell twice.

They placed him in the centre, with Carroll bringing up the rear.