The ridgeline gradually narrowed, forcing Dirk onto a side ledge that held level for a short distance. The ledge narrowed, then vanished altogether in a jumble of small boulders. Dirk swerved up the slope but struck a patch of soft sand. Feeling the rear wheels start to bog down, he had no choice but to turn downhill to maintain momentum. Narrowly missing one boulder, he slid into a tight ravine. The van heeled to its side, nearly toppling over before an opposing rut rocked it back upright. The van thumped over some smaller rocks, then again found even ground.
Dirk feathered the throttle as the ridge began to taper. Ahead and below him, he could discern the narrow Zimapán Dam. He drove hard down the increasingly steep slope, then slammed on the brakes and spun the wheel. The bent and pitted wheels skidded, digging ruts through the hard-packed surface before the van rocked to a halt. Dirk climbed out and peeked past the hood.
Just three feet in front of the van, the ridgeline dropped away in a sheer cliff. A hundred feet below was the dam’s western approach. An aged asphalt road ran across the top of the concrete structure, curving up another ridge on the opposite side. It was easy to see why the dam had been built here. The steep, narrow gorge was easily obstructed.
The thought was of little consequence as his eyes followed the road to the east. The white Jeep was just seconds away.
20
Summer sat still in the backseat, but behind her back her hands worked furiously. The rope around her wrists was still damp from immersion in the lake. The moisture lubricated her wrists while making the rope more tensile. With every bounce of the Jeep, she flexed and pulled, stretching the binding a millimeter at a time.
Already growing tired of guarding her, Summer’s backseat captor reached over and locked her door and then holstered his gun. Nevertheless, he stared at her with suspicion, or perhaps it was attraction. She countered with a verbal bombardment of questions. From the obvious—“Where are you taking me?”—to the frivolous—“Where did you buy that scarf?”—she harangued the guard. Each query was met with stony silence. The chattering worked as he ultimately turned his head away from her and stared out the window.
Summer eased back the commentary. No point pushing her luck. The gunmen hadn’t hesitated to kill Torres and easily could do the same to her. She was encouraged that the three thieves still kept their faces masked despite the heat. If she could stay calm until they reached a town, maybe she could leap from the car and find refuge. But first she’d have to work free of the rope binding.
Her wishes came true sooner than she hoped. The road gradually improved until the Jeep’s tires met pavement. They’d arrived at the dam, where the road narrowed as it wound across the top of the structure. The driver sped up, then suddenly cursed and stood on the brakes.
As the Jeep shuddered across the pavement, all four occupants shot forward. The hard braking worked in Summer’s favor. Her left hand slipped loose, and as she fell back into her seat, she quickly worked the rope off both wrists. She hadn’t seen the reason for the sudden stop. As she peered out the side window, she gaped in horror.
The green university van had shot off the side of the cliff directly overhead and was descending toward them like a Tomahawk missile. The van arced past the Jeep, striking the edge of the road ten feet ahead, where it smashed nose-first before tumbling hard onto its roof. The compressed vehicle slid another dozen feet before coming to a rest—blocking the roadway—amid a pool of leaking engine fluids.
The Jeep was still skidding when Summer unlocked her door and flung herself out. She hit the pavement running and sprinted to the van, shouting her brother’s name. As she approached the flattened vehicle, her stomach clenched in a knot. Nobody inside could have survived the impact.
She approached the inverted driver’s-side window and crouched to peer inside. There was no one to be seen. The knot in her stomach instantly released.
She had no time to react as she felt the van move. The Jeep had pulled up and the driver was attempting to nudge the wreck aside. Summer stood as the van slid a few inches past her only to find her backseat companion approaching with his gun drawn.
She meekly raised her hands while scanning for signs of Dirk. The sun was in her eyes, but the cliff looked too steep for someone to descend. Seeing no movement on the road they had taken, she glanced in the opposite direction.
They were positioned atop the dam, the reservoir’s blue waters lapping at its concrete face twenty feet below her. Oddly, the terrain on the other side of the high, narrow dam appeared completely dry. There was no powerhouse or any sign of water releases into the steep, tight gorge called El Infiernillo Cañones.
Summer looked back at the guard. With an angered expression, he motioned for her to return to the Jeep. She nodded and took a half step forward when an impulse for survival kicked in. It may not have been her best chance at escape, and perhaps it was no chance at all, but she went for it all the same. With a quick sidestep, she lunged to the guardrail and leaped. The guard reacted instantly. Reluctant to fire his weapon after his earlier tongue-lashing, he grabbed at her with his free hand, just snaring the cuff of her pants. Caught off balance, he was pulled to the rail. He refused to let go of her but couldn’t halt her momentum with his faint grip. As his legs clipped the rail, he plunged over the side.
They tumbled and hit the water together with a loud splash. Summer tried to swim deep, kicking away from the guard. But he maintained his grip on her leg while using his other hand to swing the butt of his pistol at her. She felt like she was in an underwater wrestling match. Figuring that she was the better swimmer, she stroked deeper while kicking to break free of his grasp.
Her hand slapped against the dam and she felt the concrete surface skim across her fingers. The movement was faster than she expected. They were being pulled by a strong underwater current. As the water rapidly darkened, she realized they were being drawn down toward the base of the dam.
A new worry filled her senses. What was causing the undertow? There was no powerhouse or external water flow out the back side of the dam. Absent a spillway, there should have been nothing dangerous about diving down the dam’s interior face.
The fear of drowning overtook her fear of the guard. She relaxed in his grip and then aligned with his efforts to kick to the surface. But the water turned darker, and an increasing pressure in her ears told her they were being drawn deeper into the lake.
Through the murky water, Summer detected a circular opening, about fifteen feet in diameter, that was sucking them toward it. She realized it was a spillway, cut through the base of the dam. The Zimapán Dam had in fact been built to generate hydroelectric power, only its generating station was located at the end of a tunnel some thirteen miles downstream.
The spillway inlet had a grate to keep out large debris, but years of neglect had left it mangled. Nearly half of the grate had been battered inward, allowing an unfettered flow of water.
Summer and the guard saw what was coming and fought to swim clear. But the suction grew stronger, pulling them faster to the opening. Abandoning her instincts, Summer did the unthinkable. She swam toward the inlet.
The guard glanced at her in disbelief, panic filling his eyes as he fought the relentless pull. Too late, he realized Summer had made the smart move. Swimming hard with the flow, she angled across the current just enough to reach the intact section of grating. She snared a metal crossmember and yanked her body toward it.
She slammed against the grate, nearly knocking the last breath from her lungs. The water pressure pinned her alongside some logs, a tire, and other debris. She turned her head as the guard came hurtling past. His scarf and sunglasses had long since been ripped away, and Summer saw the stark terror in his eyes as he failed to break free of the suction. In an instant he was gone, sucked down t
he black hole where the swirling waters drowned his final screams.
At least someone will be able to recover my body, Summer thought as a yearning for air overpowered her senses.
Clinging to the grate in final desperation, she wondered what was happening atop the dam and if her brother was still alive.
21