The approaching full moon was evidently getting in its work.
As we had traveled on, the moon had circled round and round the heavens opposite the sun, a disk of silver opposite a disk of gold.

Looking at its pallid and spectral face, from which the brighter light of the sun had stolen the color, it seemed hard to realize that its presence there had power to stir the great ice-fields around us with restlessness--power even now, when we were so near our goal, to interrupt our pathway with an impassable lead.
The moon had been our friend during the long winter, giving us light to hunt by for a week or two each month.

Now it seemed no longer a friend, but a dangerous presence to be regarded with fear.

Its power, which had before been beneficent, was now malevolent and incalculably potent for evil.
When we awoke early in the morning of April 3, after a few hours' sleep, we found the weather still clear and calm.

There were some broad heavy pressure ridges in the beginning of this march, and we had to use pickaxes quite freely.