Feeling the brass compass which weighed down his pocket, Kerans said: "So you're frightened that the increased temperature and radiation are alerting similar IRM's in our own minds?"
"Not in our minds, Robert. These are the oldest memories on Earth, the time-codes carried in every chromosome and gene. Every step we've taken in our evolution is a milestone inscribed with organic memories-from the enzymes controlling the carbon dioxide cycle to the organisation of the brachial plexus and the nerve pathways of the Pyramid cells in the mid-brain, each is a record of a thousand decisions taken in the face of a sudden physico-chemical crisis. Just as psychoanalysis reconstructs the original traumatic situation in order to release the repressed material, so we are now being plunged back into the archaeopsychic past, uncovering the ancient taboos and drives that have been dormant for epochs. The brief span of an individual life is misleading. Each one of us is as old as the entire biological kingdom, and our bloodstreams are tributaries of the great sea of its total memory. The uterine odyssey of the growing foetus recapitulates the entire evolutionary past, and its central nervous system is coded time scale, each nexus of neurones and each spinal level marking a symbolic station, a unit of neuronic time.
"The further down the CNS you move, from the hind-brain through the medulla into the spinal cord, the further you descend back into the neuronic past. For example, the junction between the thoracic and lumbar vertebrae, between T-12 and L-1, is the great zone of transit between the gill-breathing fish and the airbreathing amphibians with their respiratory rib-cages, the very junction where we stand now on the shores of this lagoon, between the Paleozoic and Triassic Eras."
Bodkin moved back to his desk, and ran his hand over the rack of records. Listening distantly to Bodkin's quiet, unhurried voice, Kerans toyed with the notion that the row of parallel black discs was a model of a neurophonic spinal column. He remembered the faint drumming emitted by the record player in Hardman's cabin, and its strange undertones. Perhaps the conceit was closer to the truth than he imagined?
Bodkin went on: "If you like, you could call this the Psychology of Total Equivalents-let's say 'Neuronics' for short-and dismiss it as metabiological fantasy. However, I am convinced that as we move back through geophysical time so we re-enter the amnionic corridor and move back through spinal and archaeopsychic time, recollecting in our unconscious minds the landscapes of each epoch, each with a distinct geological terrain, its own unique flora and fauna, as recognisable to anyone else as they would be to a traveller in a Wellsian time machine. Except that this is no scenic railway, but a total re-orientation of the personality. If we let these buried phantoms master us as they re-appear we'll be swept back helplessly in the flood-tide like pieces of flotsam." He picked one of the records from the rack, then pushed it away with a gesture of uncertainty. 'This afternoon I may have been taking a risk with Hardman, using the heater to simulate the sun and raise the temperature well into the 120's, but it was worth a chance. For the previous three weeks his dreams were almost driving him out of his mind, but during the last few days he's been much less disturbed, almost as if he were accepting the dreams and allowing himself to be carried back without retaining any conscious control. For his own sake I want to keep him awake as long as possible-the alarm clocks may do it."
"If he remembers to keep them set," Kerans commented quietly.
Outside in the lagoon the sounds of Riggs' cutter droned past. Stretching his legs, Kerans walked over to the window, and watched the landing craft swing in a diminishing arc around the base. While it berthed by the jetty Riggs held an informal conference with Macready across the gangway. Several times he pointed to the testing station with his baton, and Kerans assumed that they were preparing to tow the station over to the base. But for some reason the imminent departure left him unmoved. Bodkin's speculations, however nebulous, and his new psychology of Neuronics, offered a more valid explanation for the metamorphosis taking place in his mind than any other. The tacit assumption made by the UN directorate-that within the new perimeters described by the Arctic and Antarctic Circles life would continue much as before, with the same social and domestic relationships, by and large the same ambitions and satisfactions-was obviously fallacious, as the mounting flood-water and temperature would show when they reached the so-called polar redoubts. A more important task than map ping the harbours and lagoons of the external landscape was to chart the ghostly deltas and luminous beaches of the submerged neuronic continents.
"Alan," he asked over his shoulder, still watching Riggs stamping about on the landing jetty, "why don't you draught a report to Byrd, I think you should let them know. There's always a chance of-"
But Bodkin had gone. Kerans listened to his feet dump slowly up the stairway and disappear into his cabin, the fatigued tread of a man too old and too experienced to care whether or not his warnings were heeded.
Kerans went back to his desk and sat down. From his jacket pocket he withdrew the compass and placed it in front of him, cradling it between his hands. Around him the muted sounds of the laboratory formed a low background to his mind, the furry puttering of the marmoset, the tick of a recording spooi somewhere, the grating of a revolving rig estimating a creeper's phototropism.
Idly Kerans examined the compass, swinging the bearing gently in its air-bath and then aligning the pointer and scale. He tried to decide why he had taken it from the armoury. Normally it was installed in one of the motor launches, and its disappearance would soon be reported, probably involve him in the petty humiliation of admitting its theft.
Caging the compass, he swung it around towards himself, without realising it sank into a momentary reverie in which his entire consciousness became focussed on the serpentine terminal touched by the pointer, on the confused, uncertain but curiously potent image summed up by the concept 'South', with all its dormant magic and mesmeric power, diffusing outwards from the brass bowl held in his hands like the heady vapours of some spectral grail.
CHAPTER 4 The Causeways of the Sun
The next day, for reasons Kerans was to understand fully only much later, Lieutenant Hardman disappeared.
After a night of deep, dreamless sleep Kerans rose early and had breakfasted by seven o'clock. He then spent an hour on the balcony, sitting back in one of the beach chairs in a pair of white latex shorts, the sunlight expanding across the dark water bathing his lean ebony body. Overhead the sky was vivid and marbled, the black bowl of the lagoon, by contrast, infinitely deep and motionless, like an immense well of amber. The tree-covered buildings emerging from its rim seemed millions of years old, thrown up out of the Earth's magma by some vast natural cataclysm, embalmed in the gigantic intervals of time that had elapsed during their subsidence.
Pausing by the desk to run his fingers over the brass compass gleaming in the darkness of the suite, Kerans went into the bedroom and changed into his khaki drill uniform, a minimal concession to Riggs' preparations for departure. The Italian sportswear was now hardly de rigeur, and it would only rouse the Colonel's suspicions if he were seen sauntering about in a pastel-coloured ensemble with a Ritz hallmark Although he accepted the possibility that he would remain behind, Kerans found himself reluctant to take any systematic precautions. Apart from his fuel and food supplies, for which he had been dependent during the previous six months on Colonel Riggs' largesse, he had also needed an endless succession of minor spares and replacements, from a new watchface to a complete rewiring of the lighting system in the suite. Once the base and its workshop had left he would soon find himself saddled with an accumulating series of petty annoyances, and with no accommodating technical sergeant to remove them.