to repeat the whole process. This could go on until the Russian vessel did eventually leave. He wasn’t looking forward to that option at all. The longer he remained on the ground the greater the risk of exposure and of being detected. The task didn’t concern him as much as the time he would have to spend in the villa during the day and especially his need to sleep for part of it. That alone could arouse suspicion.
Voices drifted down to his ears and he shrank deeper into the cranny. They could only be coming from the top of the mole. Men’s voices, at least two, speaking in Russian. The sound was clear, as though the men were leaning over the parapet.
Stratton felt a sudden vibration by his right ear. The signal originated from a small receiver tucked into a pocket on the side of his hood. It was a GSM and GPS Sim-card device that could be activated from a cellular phone. There were three distinct vibration patterns: one to order him to abort completely, another to abort for that night only and the third to indicate that the Inessa was departing. He received the third signal, sent by an observer stationed where they could see the vessel or at least the finger of water that it would need to pass along to reach the main channel and the harbour mouth. Stratton had somewhere between fifteen and twenty minutes to get into position.
His adrenalin level rose and he eased his head from cover to look above. He could see two figures partially silhouetted against the night sky. The men moved along the wall and Stratton quickly turned on the gas bottle at the front of the diving apparatus. He pulled on the face mask, put the mouthpiece between his teeth, opened the flow valves and took several deep breaths before exhaling the gas through his nose to clear the device of excessive nitrogen. He craned his neck to look up again, the action made more difficult by the breathing apparatus. The men appeared to have gone further round the mole and out of sight. Gathering his equipment and looking and feeling like some kind of aquatic gypsy, Stratton moved away from the breakers and slipped below the surface.
Every step of the operation except the next one had been somehow quantifiable. It all depended on a handful of bolts remaining in their holes in a slab of rock. Deep down Stratton hated relying on single physical bits of apparatus - the rings that secured a man under his parachute, for instance, or the karabiner and line that kept him from falling to his death when he was climbing. It was a visceral complaint. Stratton could control the inner conflicts. They did not alter his reliance on such devices. But the concerns remained, components of his fear that were probably essential to his success.
Visibility was reasonable, at least ten metres, better than average in his experience. The rubber suit grew tighter as he finned, gripping his arms and legs as the air inside compressed. He looked at the needle of a luminous compass attached to his wrist.
The concrete mouldings gave way to huge boulders. Stratton followed them until they abruptly ended and a flat shale seabed stretched into the gloom. He had swum too far. The Inessa would pass closer to the mole, above the boulders. He turned back to look for a place to set himself up.
He inspected the boulders as he moved over them. They all looked like granite. The only obsidian ones, as far as he could tell, were some smaller rocks between the larger gaps. He had taken Binning’s advice and studied the differences between the two rock formations. Confident at the time, he was less so now that he was on task and in darkness.
Stratton found what appeared to be a choice location: a broad, almost flat boulder, although it lay at a slight tilt. It was not big enough to accommodate the entire frame but another, slightly smaller boulder beside it looked ideal to take the overlap. A check of his wristwatch showed he had around eight minutes before the earliest moment the Inessa could arrive, if the calculations were correct and the GSM signal had arrived as soon as it had been sent. The bolting and harnessing of the frame could be completed in a couple of minutes or so, according to Binning’s trial-timing average. Stratton could not afford to waste a second. He