Later, during my walk, I saw a moon halo, the first since I've been here. I had remarked inwardly that the moon seemed almost unnaturally bright, but thought no more about it until something — perhaps a subtle change in the quality of moonlight — fetched my attention back to the sky. When I glanced up, a haze was spreading over the moon's face; and, as I watched, a system of luminous circles formed themselves gracefully around it. Almost instantly the moon was wholly surrounded by concentric bands of color, and the effect was as if a rainbow had been looped around a huge silver coin. Apple-green was the color of the wide outer band, whose diameter, I estimated, was nineteen times that of the moon itself. The effect lasted only five minutes or so. Then the colors drained from the moon, as they do from a rainbow; and almost simultaneously a dozen massive streamers of crimson-stained aurora, laced together with blackish stripes, seemed to leap straight out from the moon's brow. Then they, too, vanished.
May 3
. . I again saw in the southeast, touching the horizon, a star so bright as to be startling. The first time I saw it several weeks ago I yielded for an instant to the fantastic notion that somebody was trying to signal me; that thought came to me again this afternoon. It's a queer sort of star, which appears and disappears irregularly, like the winking of a light.
The wind vane has been giving quite a bit of trouble lately. I've had to climb the pole once or twice every day to scrape the contact points. The temperature is holding pretty steadily between 50 degrees and 60 degrees below zero; and I must admit that the job is chillier than I bargained for. Freezing my hands, nose, and cheeks, separately or all together every time I mount the pole is an old story by now; today, for a change, I froze my chin. But all this is not as bad as it sounds. .
May 5
This has been a beautiful day. Although the sky was almost cloudless, an impalpable haze hung in the air, doubtless from falling crystals. In midafternoon it disappeared, and the Barrier to the north flooded with a rare pink light, pastel in its delicacy. The horizon line was a long slash of crimson, brighter than blood; and over this welled a straw-yellow ocean whose shores were the boundless blue of the night. I watched the sky a long time, concluding that such beauty was reserved for distant, dangerous places, and that nature has good reason for exacting her own special sacrifices from those determined to witness them. An intimation of my isolation seeped into my mood; this cold but lively afterglow was my compensation for the loss of the sun whose warmth and light were enriching the world beyond the horizon.
That afternoon, for variety's sake, I decided to direct my walk out along the radio antenna, which extended on a line about due east from the shack. The cold was not excessive — somewhere between 50 degrees and 60 degrees below zero — but I was astonished to find how much rime had collected on the wire. It was swollen to many times its natural size; so much so, in fact, that I could just encircle it with my fingers; and the weight of the ice had caused it to sag in great loops between the poles.
A day or so before the sun had departed I had planted a bamboo stick about twenty yards beyond the last antenna pole. This was to serve as a beacon in case I ever happened to miss the pole in fog or storm. On this day I found the marker without difficulty.
I was standing there, thinking about something, when I suddenly remembered that I had left the stove going. So I turned back, making for the last antenna pole, whose shadowy pencil form I could just see. Head screwed down inside the windproof hood out of the wind, I paid no attention to where I was stepping. Then I had a horrible feeling of falling, and at the same time of being hurled sideways. Afterwards I could not remember hearing any sound. When my wits returned, I was sprawled out full length on the snow with one leg dangling over the side of an open crevasse.
I lay still, not daring to make a move lest I shake down the ledge supporting me. Then, an inch at a time, I crawled away. When I had gone about two yards, I came slowly to my feet, shivering from the closeness of the escape.
I had broken through the snow bridging of a blind crevasse — a roofed-over one which you cannot tell from the solid surface. I edged back with my flashlight and took a look. The hole I had made was barely two feet across; and I could see that the roof was twelve inches or so thick. Stretched out on my belly, I pounded the roof in with the marker stick for a distance of several feet; then I turned the flashlight into the crevasse. I could see no bottom. My guess was that the crevasse was at least several hundred feet deep. At the surface it was not more than three feet across; but a little way down it bellied out, making a vast cave. The walls changed from blue to an emerald green, the color of sea ice. The usual crystals created by the condensed exhalations from the warmer depths did not festoon the walls; their absence indicated that the crevasse was of fairly recent origin.
I was glad to leave that place. Good luck had carried me across the crevasse at right angles to its length. Had I been walking in any other direction, I might well have gone to the bottom. Odd, I thought, that it hadn't let me through when I had hit the one weak spot. So as not to make a similar mistake, I fetched back two bamboo poles and planted them in front of the hole.
May 6
Today I broke the thermometer I keep in the hut. It is not important, really, as inside temperatures are not a part of my meteorological records; but I have been interested in finding out how cold it gets in the hut during the night when the fire is out.
Curiosity tempted me to ask Little America how the stock market was going. It was a ghastly mistake. I can in no earthly way alter the situation. Worry, therefore, is needless. Before leaving [home] I had invested my own funds — carefully, I thought — in the hope of making a little money and thus reducing the expedition's debt. This additional loss, on top of ever-mounting operating expenses, may be disastrous. Well, I don't need money here. The wisest course is to close off my mind to the bothersome details of the world.
It was one thing to instruct the mind; it was another to make the mind obey. The nature of the distinction was to be a fundamental part of my self-destruction at Advance Base, as is evidenced by a diary entry about this time: «Something — I don't know what — is getting me down,» the entry goes. «I've been strangely irritable all day, and since supper have been depressed. . [This] would not seem important if I could only put my finger on the trouble, but I can't find any single thing to account for the mood. Yet, it has been there; and tonight, for the first time, I must admit that the problem of keeping my mind on an even keel is a serious one. . "
The entire entry, a longish one, is before me now. I have a clear recollection of how it came to be written. Supper was over, the dishes had been washed, the 8 p.m. «ob» was out of the way, and I had settled down to read. I picked up Veblen's Theory of the Leisure Class, which I was halfway through, but its concerns seemed fantastically remote to the monocracy of Advance Base. I went from that to Heloise and Abelard, a story I have always loved; after a little while the words began to run together. Queerly, my eyes hurt, my head ached a little, though not enough to bother.
So I turned up the lamp a little, thinking that more light might help, and tried a few hands of solitaire. But this did no good. Nor did bathing my eyes in boric acid. I couldn't concentrate. My whole being was restive and unaccountably troubled. I got up and paced the room. My movements were almost automatic. Two strides — duck the light, sidestep the stove — another step — full turn at the bunk — back again — three strides from the door to the radio set — three back — and so on, tracing an endlessly repeated L. Months after I had left Advance Base, when the pain was ebbing into forgetfulness, I used to pace my room that way, my steps unconsciously regulated to the dimensions of the shack, and my head jerking away from an imaginary lantern.