myself is in every respect but one similar to Earth. There is no animate life—only plants. No birds fly, no insects buzz, no animals rustle the silent underbrush. The only noise is the wind in the trees and grasses. I am utterly alone. It is a strange feeling, this loneliness. There is a feeling of freedom in it, a release from the too-close proximity of my fellow men. There is the pleasure of absolute privacy. But this will undoubtedly pall. Already I find that I am anxious for someone to talk to, someone with whom I can share ideas and plans. There ...

... which I cannot explain. But one thing is certain. My first impression of this place was wrong. The life here, if not animate, is at least intelligent—and it is not friendly. Yet neither does it hate. It observes me with a slow, methodical curiosity that I can sense at the very threshold of consciousness. It is a peculiar sensation that is quite indescribable—unpleasant—but hardly terrifying. I suppose I can feel it more than a normal person because I am a biologist and it is part of my training and specialized skill to achieve a certain rapport with my surroundings. I first noticed it yesterday. It came suddenly, without warning, a vague uneasiness, like the feeling when one awakens from a partially remembered but unpleasant dream. And it has been increasing ever since.

The principal impressions I received from this initial contact were an awareness of self and a recognizance of identity—the concept of cogito ergo sum came through quite clearly. I wonder what Descartes would think of an alien intelligence quoting his dogma.... I think it is animal, despite the absence of animal life in this area. The thought patterns are quick and flexible. And they have been increasing in power and precision at an appreciable rate. I am sure that it is aware of me. I shall call the feeling "it" until I can identify the source more accurately. Certainly "it" appears to be as good a description as any, since there is no consciousness of sex in the thought patterns. I wonder what sort of ... and to my surprise I swore! I do not ordinarily curse or use obscenities—not because they are obscene but because they are a poor and inexact means of conveying ideas or impressions. But in this case they were particularly appropriate. No other words could so precisely describe my feelings. Me, a rational intelligence, succumbing to such low-level emotional stimuli! If this keeps on, the next thing I know I will be seeing little green men flitting through the trees.... Of course, this world is unnatural, which makes its effect on the nervous system more powerful, yet that does not explain the feeling of tension which I have been experiencing, the silent straining tension of an overloaded cable, the tension of a toy balloon overfull with air. I have a constant feeling of dreadful expectancy, of imminent disaster, mixed with a sense of pain and a lively—almost childlike—curiosity. To say that this is disquieting would be a complete understatement, this state of chronic disease, mixed with occasional rushes of terror. I am certain that my nervous system and emotional responses are being examined, and catalogued like a visceral preparation in an anatomy laboratory. There is something infinitely chilling about this mental dissection.

... and after a careful search of the area I found precisely nothing. You who may read this will probably laugh, but I cannot. To me this is no laughing matter. I find myself jumping at the slightest noise, an increase in the wind, the snap of an expanding hull plate, the crackle of static over my radio. I whirl around to see who, or what, is watching me. My skin crawls and prickles as though I were covered with ants. My mind is filled with black, inchoate dread. In three words, I'm scared stiff! Yet there is nothing tangible—nothing I should be frightened about, and this terrifies me even more. For I know where this continual fear and worry can lead—to what ends this incessant stimulation can