Gravity - Tess Gerritsen

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      ‘I didn’t copy that. Repeat.’

      ‘The canyon wall is giving way! There’s debris falling toward you. Get out of there!’

      The loud pings of rocks hitting the hull made him jam the joysticks forward in panic. A massive shadow plummeted down through the murk just ahead and bounced off a canyon shelf, sending a fresh rain of debris into the abyss. The pings accelerated. Then there was a deafening clang, and the accompanying jolt was like a fist slamming into him.

      His head jerked, his jaw slamming into the body pan. He felt himself tilting sideways, heard the sickening groan of metal as the starboard wing scraped over jutting rocks. The sub kept rolling, sediment swirling past the dome in a disorienting cloud.

      He hit the emergency-weight-drop lever and fumbled with the joysticks, directing the sub to ascend. Deep Flight IV lurched forward, metal screeching against rock, and came to an unexpected halt. He was frozen in place, the sub tilted starboard. Frantically he worked at the joysticks, thrusters at full ahead.

      No response.

      He paused, his heart pounding as he struggled to maintain control over his rising panic. Why wasn’t he moving? Why was the sub not responding? He forced himself to scan the two digital display units. Battery power intact. AC unit still functioning. Depth gauge reading, six thousand eighty-two meters.

      The sediment slowly cleared, and shapes took form in the beam of his port wing light. Peering straight ahead through the dome, he saw an alien landscape of jagged black stones and bloodred Riftia worms. He craned his neck sideways to look at his starboard wing. What he saw sent his stomach into a sickening tumble.

      The wing was tightly wedged between two rocks. He could not move forward. Nor could he move backward. I am trapped in a tomb, nineteen thousand feet under the sea.

      ‘…copy? Steve, do you copy?’

      He heard his own voice, weak with fear: ‘Can’t move—starboard wing wedged—’

      ‘…port-side wing flaps. A little yaw might wiggle you loose.’

      ‘I’ve tried it. I’ve tried everything. I’m not moving.’

      There was dead silence over the earphones. Had he lost them? Had he been cut off? He thought of the ship far above, the deck gently rolling on the swells. He thought of sunshine. It had been a beautiful sunny day on the surface, birds gliding overhead. The sea a bottomless blue…

      Now a man’s voice came on. It was that of Palmer Gabriel, the man who had financed the expedition, speaking calmly and in control, as always. ‘We’re starting rescue procedures, Steve. The other sub is already being lowered. We’ll get you up to the surface as soon as we can.’ There was a pause, then: ‘Can you see anything? What are your surroundings?’

      ‘I—I’m resting on a shelf just above the vent.’

      ‘How much detail can you make out?’

      ‘What?’

      ‘You’re at six thousand eighty-two meters. Right at the depth we were interested in. What about that shelf you’re on? The rocks?’

      I am going to die, and he is asking about the fucking rocks.

      ‘Steve, use the strobe. Tell us what you see.’

      He forced his gaze to the instrument panel and flicked the strobe switch.

      Bright bursts of light flashed in the murk. He stared at the newly revealed landscape flickering before his retinas. Earlier he had focused on the worms. Now his attention shifted to the immense field of debris scattered across the shelf floor. The rocks were coal black, like magnesium nodules, but these had jagged edges, like congealed shards of glass. Peering to his right, at the freshly fractured rocks trapping his wing, he suddenly realized what he was looking at.

      ‘Helen’s right,’ he whispered.

      ‘I didn’t copy that.’

      ‘She was right! The iridium source—I have it in clear view—’

      ‘You’re fading out. Recommend you…’ Gabriel’s voice broke up into static and went dead.

      ‘I did not copy. Repeat, I did not copy!’ said Ahearn.

      There was no answer.

      He heard the pounding of his heart, the roar of his own breathing. Slow down, slow down. Using up my oxygen too fast…

      Beyond the acrylic dome, life drifted past in a delicate dance through poisonous water. As the minutes stretched to hours, he watched the Riftia worms sway, scarlet plumes combing for nutrients. He saw an eyeless crab slowly scuttle across the field of stones.

      The lights dimmed. The air-conditioning fans abruptly fell silent.

      The battery was dying.

      He turned off the strobe light. Only the faint beam of the port wing light was shining now. In a few minutes he would begin to feel the heat of that one-hundred-eighty-degree magma-charged water. It would radiate through the hull, would slowly cook him alive in his own sweat. Already he felt a drop trickle from his scalp and slide down his cheek. He kept his gaze focused on that single crab, delicately prancing its way across the stony shelf.

      The wing light flickered.

      And went out.

THE LAUNCH

       2

      July 7

      Two Years Later

       Abort.

      Through the thunder of the solid propellant rocket boosters and the teeth-jarring rattle of the orbiter, the command abort sprang so clearly into Mission Specialist Emma Watson’s mind she might have heard it shouted through her comm unit. None of the crew had, in fact, said the word aloud, but in that instant she knew the choice had to be made, and quickly. She hadn’t heard the verdict yet from Commander Bob Kittredge or Pilot Jill Hewitt, seated in the cockpit in front of her. She didn’t need to. They had worked so long together as a team they could read each other’s minds, and the amber warning lights flashing on the shuttle’s flight console clearly dictated their next actions.

      Seconds before, Endeavour had reached Max Q, the point during launch of greatest aerodynamic stress, when the orbiter, thrusting against the resistance of the atmosphere, begins to shudder violently. Kittredge had briefly throttled back to seventy percent to ease the vibrations. Now the console warning lights told them they’d lost two of their three main engines. Even with one main engine and two solid rocket boosters still firing, they would never make it to orbit.

      They had to abort the launch.

      ‘Control, this is Endeavour,’ said Kittredge, his voice crisp and steady. Not a hint of apprehension. ‘Unable to throttle up. Left and center MEs* went out at Max Q. We are stuck in the bucket. Going to RTLS abort.’

      Emma was already rifling through the stack of checklists, and she retrieved the card for ‘Return to Launch Site Abort.’ The crew knew every step of the procedure by heart, but in the frantic pace of an emergency abort, some vital action might be forgotten. The checklist was their security blanket.

      Her heart racing, Emma scanned the appropriate path of action, clearly marked in blue. A two-engine-down RTLS abort was survivable—but only theoretically. A sequence of near miracles had to happen next. First they had to dump fuel and cut off the last main engine

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