I do not know how this thorn got here or from how far away it came, but by luck or fate or design at some point it found the lighthouse keeper and did not let him go. How long he had as it remade him, repurposed him, is a mystery. There was no one to observe, to bear witness—until thirty years later a biologist catches a glimpse of him and speculates on what he might have become. Catalyst. Spark. Engine. The grit that made the pearl? Or merely an unwilling passenger?
And after his fate was determined … imagine the expeditions—twelve or fifty or a hundred, it doesn’t matter—that keep coming into contact with that entity or entities, that keep becoming fodder and becoming remade. These expeditions that come here at a hidden entry point along a mysterious border, an entry point that (perhaps) is mirrored within the deepest depths of the Tower. Imagine these expeditions, and then recognize that they all still exist in Area X in some form, even the ones that came back, especially the ones that came back: layered over one another, communicating in whatever way is left to them. Imagine that this communication sometimes lends a sense of the uncanny to the landscape because of the narcissism of our human gaze, but that it is just part of the natural world here. I may never know what triggered the creation of the doppelgängers, but it may not matter.
Imagine, too, that while the Tower makes and remakes the world inside the border, it also slowly sends its emissaries across that border in ever greater numbers, so that in tangled gardens and fallow fields its envoys begin their work. How does it travel and how far? What strange matter mixes and mingles? In some future moment, perhaps the infiltration will reach even a certain remote sheet of coastal rock, quietly germinate in those tidal pools I know so well. Unless, of course, I am wrong that Area X is rousing itself from slumber, changing, becoming different than it was before.
The terrible thing, the thought I cannot dislodge after all I have seen, is that I can no longer say with conviction that this is a bad thing. Not when looking at the pristine nature of Area X and then the world beyond, which we have altered so much. Before she died, the psychologist said I had changed, and I think she meant I had changed sides. It isn’t true—I don’t even know if there are sides, or what that might mean—but it could be true. I see now that I could be persuaded. A religious or superstitious person, someone who believed in angels or in demons, might see it differently. Almost anyone else might see it differently. But I am not those people. I am just the biologist; I don’t require any of this to have a deeper meaning.
I am aware that all of this speculation is incomplete, inexact, inaccurate, useless. If I don’t have real answers, it is because we still don’t know what questions to ask. Our instruments are useless, our methodology broken, our motivations selfish.
* * *
There is nothing much left to tell you, though I haven’t quite told it right. But I am done trying anyway. After I left the Tower, I returned to base camp briefly, and then I came here, to the top of the lighthouse. I have spent four long days perfecting this account you are reading, for all its faults, and it is supplemented by a second journal that records all of my findings from the various samples taken by myself and other members of the expedition. I have even written a note for my parents.
I have bound these materials together with my husband’s journal and will leave them here, atop the pile beneath the trapdoor. The table and the rug have been moved so that anyone can find what once was hidden. I also have replaced the lighthouse keeper’s photograph in its frame and put it back on the wall of the landing. I have added a second circle around his face because I could not help myself.
If the hints in the journals are accurate, then when the Crawler reaches the end of its latest cycle within the Tower, Area X will enter a convulsive season of barricades and blood, a kind of cataclysmic molting, if you want to think of it that way. Perhaps even sparked by the spread of activated spores erupting from the words written by the Crawler. The past two nights, I have seen a growing cone of energy rising above the Tower and spilling out into the surrounding wilderness. Although nothing has yet come out of the sea, from the ruined village figures have emerged and headed for the Tower. From base camp, no sign of life. From the beach below, there is not even a boot left of the psychologist, as if she has melted into the sand. Every night, the moaning creature has let me know that it retains dominion over its kingdom of reeds.
Observing all of this has quelled the last ashes of the burning compulsion I had to know everything … anything … and in its place remains the knowledge that the brightness is not done with me. It is just beginning, and the thought of continually doing harm to myself to remain human seems somehow pathetic. I will not be here when the thirteenth expedition reaches base camp. (Have they seen me yet, or are they about to? Will I melt into this landscape, or look up from a stand of reeds or the waters of the canal to see some other explorer staring down in disbelief? Will I be aware that anything is wrong or out of place?)