Then she was out of the switchbacks and into a section that required more attention. Tunnels crisscrossed in a funhouse maze. She braked a bit, slowing to catch the spray-painted markers on the ice. She had memorized the turns, but she knew better than to make a mistake.
She swung her helmet lamp, which cast its single beam far down the dark tunnel, giving the ice a translucent glow. The markers—orange arrows—were easy to pick out. They seemed to shine with their own light.
She shot into the first of the arrow-painted passages, passing by dead ends and tunnels that led out to dangerous terrain. As she passed one of these unmarked tunnels, shadows shifted deep inside, but her speed was too fast to get a look. As she shot past, she risked a glance behind her. No luck. She was already too far down the tunnel. The angle was wrong for the beam of her helmet lamp to penetrate the rapidly retreating tunnel mouth.
She faced forward. At such speeds, her attention needed to stay focused ahead of her. Still, her nerves were now jangled, like someone had drenched her with ice water. She had gone from easy contentment and joy to a hard-edged anxiety.
She tried to dismiss it. “Just the shadows playing tricks,” she said aloud, hoping her own voice would comfort her. But the echoes of her words spooked her. They sounded unnaturally loud.
She was now acutely aware of how alone she was down here.
A small noise caught up to her. Probably a bit of ice sliding and scraping down the tunnel. Still, the scritching tightened her jaw. Twisting her neck, she glanced behind her again. The beam of light revealed only empty passage, but the length of view was only twenty yards as the tunnel twisted away behind her.
She turned back around, almost missing one of the orange markers. She had to brake and kick out with her left leg to make the sharp turn into the correct passage.
As Lacy shot into the proper tunnel, her legs trembled under her. Fear fatigued her muscles. She realized she should have taken the tunnel just before this one. She had marked this passage because it led outward into a long half-mile single loop. The other was a shortcut, too short for her usual four-mile run. Now she just wanted to get the hell out of these passages and back to other people, back to Connor’s arms.
As she raced down the loop, she increased her speed, seeking to put some distance between her and the shifting shadows. After a full minute with nothing but her own thoughts, she realized how foolish she was being. There were no more suspicious shadows or noises—just the clean hiss of her blades over the ice.
She began the climb out of the loop. The passage slanted up and required work to keep moving forward. But her momentum and the smooth ice helped. Shoving with her legs, falling into her familiar rhythm, she raced back out of the loop—heading toward home again.
A small laugh escaped her. What was she so afraid of? What could be down here? She studied her reaction. Maybe her night with Connor had awakened some deep misgiving in her after all. Maybe this was an echo of guilt. She had met Connor’s wife many times at university functions. Linda was a sweet, gentle woman with an easy, welcoming manner. She didn’t deserve to be so—
The noise returned. The slippery sound of ice on ice.
Now it came from ahead of her.
She braked. Far down the passage, near the end of the loop, shadows shifted. Her light could not reach that far. She slowed but didn’t stop. She wasn’t sure. She wanted to see if there was truly anything to fear. Her light bled ahead as she advanced.
“Hello!” Lacy called out. Maybe it was another of the researchers, off to explore on his own.
No answer. Whatever movement she had noted had now stopped. The shadows had settled to their usual stillness.
“Hello!” she repeated. “Is anyone there?”
She crept forward, gliding on her skate blades. She followed the glow of her light as it stretched down the passage.
Ahead, the loop came to an end, reentering the funhouse maze of passages again. Her throat had gone dry and tight from the cold, as if someone were choking her. I only have to get through the maze…then it’s a straight shot back to civilization.
Despite her momentary flare of guilt, she wanted nothing at this moment but to see Connor. Just the thought of the towering man with his strong hands and broad shoulders quickened her legs. Once she was back in his embrace, she would be safe.
She climbed out of the loop and into the maze. Nothing was here. “Just tricks,” she whispered to her own heart, “just ice, light, and shadow.”
She followed the orange markers, like beacons in the night. Twisting one way, then another. Then, from far down in the dark well, her light reflected back at her. Two red spots glowed.
Lacy knew what she was seeing.
Eyes, unblinking, large—dead of emotion.
She braked to a stop, kicking up ice.
Fear shook through her. She felt her bladder give way a little, the trickle hot in her skin suit.
She backed a single step, then another. Legs trembled. She wanted to turn and run, but she feared turning her back on those eyes. She continued her halting retreat.
Then in a blink, the eyes vanished—whether because her light had pulled back or the presence was gone, she didn’t know. Free from their paralyzing stare, she twisted around and fled on her blades.
She raced, fueled by terror. Her arms flailed, her legs kicked, digging out chunks of ice in her panic. She fled blindly into the maze of passages. Her markers were all designed for a counterclockwise circuit, orange arrows pointing the safe way. Now, as she ran backward through her course, the markers were meaningless. They all pointed back toward the creature behind her.
In a matter of moments, she was lost.
She raced down a narrow passage, one she had never been in before, more a crack in the ice than a true tunnel. Her breathing choked into ragged gasps. Blood pounded in her ears. But her own heartbeat was not loud enough to drown out the skitter on the ice.
Crying, tears flowing and freezing on her cheeks, she scrabbled with her blades. The tunnel widened a bit, allowing her more room to push and kick. She only had to get away…keep moving. A low moan flowed out from her. It didn’t sound like her. But she couldn’t stop it either.
She craned around, shining the light over her shoulder. Through the pinch in the tunnel behind her, something was shoving toward her. It was huge. Eyes glowed from its bulk, an albino whiteness, a rolling snowbank.
Polar bear, her mind screamed.
She remembered the whispers of something picked up on the DeepEye sonar. Movement on the scope.
She cried out and raced away.
As she fled around a sharp corner, the floor vanished a few yards in front of her. The bright ice ended at darkness. As a geology student, she knew the name for this: ice shear. Like any crystal, when ice was exposed to stress, it broke in clean planes. On glaciers, this led to ice-shear cliffs. But the same features could be found inside glaciers, too…or inside ice islands.