第10章 The Fixed Beam

For six days, Elias let the lamp do what the lamp had decided to do, and he recorded it with the discipline of a man keeping a scientific log of a natural phenomenon, as though the phenomenon were weather and not the rearranged purpose of his own instrument. The pattern was consistent. The clockwork ran on the rising tide. The lens swept. At the witness bearing, held for three seconds — the count did not vary, night to night, tide to tide — the beam lay across the water at the azimuth of the vanished column, and during those three seconds the beam no longer behaved like light upon a surface. It behaved like light entering a medium. The dark indigo water at that bearing did not catch the beam and throw it back toward the lamp. It accepted it, folded it downward, and swallowed it in a slow, spreading bloom that was visible to Elias's eye as a faint glow diminishing into depth, the way a shaft of sun through clear ice narrows and dies. He verified that the water at the witness bearing had changed its optical properties. He stood on the jetty — the jetty was above water again, the secondary band having drawn down to the level of the rocks during his first night of rest — and lowered a plummet on a marked line. Below his boat, for the old rowboat had survived, waterlogged but whole, the line ran out to forty fathoms, to fifty, to sixty, and did not reach bottom. His chart, drawn from soundings taken a year earlier, marked thirty-eight fathoms at that position, over a bottom of broken basalt. He pulled up the line. The lead was clean of mud, clean of sand, and, he noted with care, dry. The depths of the ocean at that place had become a column of water that behaved, for the purposes of his line, as if it were open air. He did not lower the line a second time. He sat in the rowboat on a calm sea, the lighthouse behind him, the place of the column before him, and let the fact of the depth settle into his understanding: something had opened where the column had risen, and the opening was not in the water as his charts understood water. It was in the water as the deep understood it. The following morning he came back armed against doubt. He had found a longer line in the equipment shed, a coil of the tarred marline used for hauling, and he spliced on the lead of the old sounding set and rowed out to the same position with a notebook and a calm he did not entirely feel. He sounded the point three times, letting the line run until the splice knots had gone over the rail and the coil was down to its last turns. No bottom. He drew the line up hand over hand and marked the wet length against the rail, and the water came up to a height that corresponded to no depth he had measured, as though the line kept a different history in that place than it did in the air. He rowed fifty meters port of the bearing and sounded again, and the lead struck solid basalt at thirty-nine fathoms, close enough to the chart to settle an ordinary reading. He rowed fifty meters starboard and sounded again: thirty-nine and a half fathoms on broken bottom. The impossibility was contained. It did not spread through the sea like a stain; it stood in one place, a vertical well of open-air water in an ocean that had, everywhere else, remembered how to be an ocean, and the well lay exactly along the bearing of the lamp. On the fourth night he tried the radio. The set was the new receiver from the last supply, still clean of moisture, and he keyed the transmitter and gave his call sign and his position and a description of the optical phenomenon, in the flat procedural language that the lighthouse authority preferred. He repeated the message twice. The static was absolute. He had turned away, half asleep on his feet, when the static changed. It did not resolve into speech. It organized itself into a rhythm — a modulation at a frequency he recognized, because it was the frequency of the floor's old vibration, slowed and pulled into the band of human hearing. And then, faintly, in the static, his own voice spoke back to him. It was his voice as recorded moments earlier — the same words, the same flat procedural delivery — but it arrived in reverse, then in fragments, then in a version of itself that had the words in the right order and the wrong emphasis, stress falling where no speaker would place it. He switched the receiver off and stood with his hand on the knob, breathing slowly. He returned to his measurements. The pause at the witness bearing lengthened by a fraction of a second each high tide — too small to measure with a pocket watch, but he could feel the difference in the pulse of the beam, and he marked the trend in the logbook in the margin, in pencil, in the old habit of noting an anomaly before it became a finding. The depth at the witness bearing, he determined on the fifth day by dropping a glass fishing float on a line, continued to exhibit its impossible clarity, and twenty meters down in that column of open-air water, the float showed him something the lead had not: light. A faint, steady luminescence, too deep for the lamp's beam to have carried, too steady for any creature's bioluminescence. It was the color of the greenish glow that had come off the parting sea, and it did not flicker, and it did not move, and it was down there, at the bottom of a hole in the water that his charts insisted did not exist. He pulled up the float, rowed back to the jetty, and sat down on the stones with his notebook open in his lap. He wrote: *The lamp is not a warning light. It is a wire. The beam is a current. And what it reaches is a load that has been waiting a long time for a circuit to be closed.* He underlined the last sentence, and because he was a methodical man, he did not underline anything else that week. ---