I soon found that my dreams had indeed no counterpart in the overwhelming bulk of true amnesia cases. There remained, however, a tiny residue of accounts which for years baffled and shocked me with their parallelism to my own experience. Some of them were bits of ancient folklore; others were case-histories in the annals of medicine; one or two were anecdotes obscurely buried in standard histories. It thus appeared that, while my special kind of affliction was prodigiously rare, instances of it had occurred at long intervals ever since the beginning of man’s annals. Some centuries might contain one, two, or three cases; others none — or at least none whose record survived.
The essence was always the same — a person of keen thoughtfulness seized with a strange secondary life and leading for a greater or lesser period an utterly alien existence typified at first by vocal and bodily awkwardness, and later by a wholesale acquisition of scientific, historic, artistic, and anthropological knowledge; an acquisition carried on with feverish zest and with a wholly abnormal absorptive power. Then a sudden return of the rightful consciousness, intermittently plagued ever after with vague unplaceable dreams suggesting fragments of some hideous memory elaborately blotted out. And the close resemblance of those nightmares to my own — even in some of the smallest particulars — left no doubt in my mind of their significantly typical nature. One or two of the cases had an added ring of faint, blasphemous familiarity, as if I had heard of them before through some cosmic channel too morbid and frightful to contemplate. In three instances there was specific mention of such an unknown machine as had been in my house before the second change.
Another thing that cloudily worried me during my investigation was the somewhat greater frequency of cases where a brief, elusive glimpse of the typical nightmares was afforded to persons not visited with well-defined amnesia. These persons were largely of mediocre mind or less — some so primitive that they could scarcely be thought of as vehicles for abnormal scholarship and preternatural mental acquisitions. For a second they would be fired with alien force — then a backward lapse and a thin, swift-fading memory of un-human horrors.
There had been at least three such cases during the past half century — one only fifteen years before. Had something been groping blindly through time from some unsuspected abyss in Nature? Were these faint cases monstrous, sinister experiments of a kind and authorship utterly beyond sane belief? Such were a few of the formless speculations of my weaker hours — fancies abetted by myths which my studies uncovered. For I could not doubt but that certain persistent legends of immemorial antiquity, apparently unknown to the victims and physicians connected with recent amnesia cases, formed a striking and awesome elaboration of memory lapses such as mine.
Of the nature of the dreams and impressions which were growing so clamorous I still almost fear to speak. They seemed to savour of madness, and at times I believed I was indeed going mad. Was there a special type of delusion afflicting those who had suffered lapses of memory? Conceivably, the efforts of the subconscious mind to fill up a perplexing blank with pseudo-memories might give rise to strange imaginative vagaries. This, indeed (though an alternative folklore theory finally seemed to me more plausible), was the belief of many of the alienists who helped me in my search for parallel cases, and who shared my puzzlement at the exact resemblances sometimes discovered. They did not call the condition true insanity, but classed it rather among neurotic disorders. My course in trying to track it down and analyse it, instead of vainly seeking to dismiss or forget it, they heartily endorsed as correct according to the best psychological principles. I especially valued the advice of such physicians as had studied me during my possession by the other personality.
My first disturbances were not visual at all, but concerned the more abstract matters which I have mentioned. There was, too, a feeling of profound and inexplicable horror concerning myself. I developed a queer fear of seeing my own form, as if my eyes would find it something utterly alien and inconceivably abhorrent. When I did glance down and behold the familiar human shape in quiet grey or blue clothing I always felt a curious relief, though in order to gain this relief I had to conquer an infinite dread. I shunned mirrors as much as possible, and was always shaved at the barber’s.
It was a long time before I correlated any of these disappointed feelings with the fleeting visual impressions which began to develop. The first such correlation had to do with the odd sensation of an external, artificial restraint on my memory. I felt that the snatches of sight I experienced had a profound and terrible meaning, and a frightful connexion with myself, but that some purposeful influence held me from grasping that meaning and that connexion. Then came that queerness about the element of time, and with it desperate efforts to place the fragmentary dream-glimpses in the chronological and spatial pattern.