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Sam held a finger to his lips.
The sound came again, from a few feet away. Sam moved down the face and stopped before a granite slab. It was ten feet tall and four feet wide. Two-thirds of the way up was a diagonal crack filled with yellow-green lichen. Sam stood on his tiptoes and pressed his fingertips to the crack.
“There’s cool air blowing out,” he said. “There’s a void behind this. That top piece can’t weigh more than five hundred pounds. With the right leverage we could do it.”
From the packs he withdrew a pair of Petzl Cosmique ice axes and slipped them into his belt. Though unsure of what they’d find once they reached the pass, it had seemed unlikely the Karyatids were tucked away in a closet in the hospice. The most likely hiding place would be either in some high, hidden cranny or somewhere underground.
Remi said, “Next adventure, less spelunking, more tropical beaches.”
“Anyone looking?” Sam asked.
They scanned the opposite side of the lake and the roads.
Remi said, “If they are, they’re being careful about it.”
“Do you mind playing ladder?”
“Have I ever said no to that?”
Sam slid his fingers into the crack and chinned himself up. Remi put her shoulders beneath his feet and he boosted himself onto the top of the slab. He turned himself around, his back against the slope. Next he jammed the pick end of each ax into the scree between the slab and the slope so the handles were pointing outward. He gripped a handle in each hand as if he was going to set dual parking brakes.
“Look out below.”
Sam set his jaw, heaved back on the ax handles, and pressed with his feet. The cracked slab tilted outward, teetered for a moment, then toppled over. Sam’s feet went with it. He spun himself onto his belly and crossed his arms, catching them on the ledge. The slab crashed to the ground, sending up a puff of dirt.
“What do you see?” Remi asked.
“A very dark tunnel. About two feet by two feet.”
He dropped to the ground and they knelt beside the slab. He plucked the water bottle off his belt and dumped half the contents onto the face, washing away the dust.
Stamped into the stone was a cicada.
CHAPTER 57
They donned their headlamps and climbing harnesses, then Sam boosted himself up the slab and shined his lamp into the entrance.
“It’s straight and level for ten feet then widens out,” he said. “Can’t see any ledges.”
He wriggled feet first into the tunnel, then leaned over and helped Remi up. Once she was perched atop the slab he continued backing inside, Remi crawling after him until they reached the wide part, where he turned around. The ceiling was three feet tall and covered in “popcorn,” tiny clusters of calcite.
Ahead a funnel-shaped hole in the floor was partially plugged by a stalactite. They saw no other openings. They crawled ahead and Sam peeked down the hole. “There’s a platform about six feet below.”
He rolled onto his back and kicked the stalactite until it broke loose from the ceiling. He shoved it away from the hole. “I’ll go,” Remi said, then scooted forward and slipped her legs through. Sam grabbed her hands and lowered her down until her feet found the platform. “Okay, feels solid.” He let go, then a moment later dropped down beside her, reaching up and manhandling the stalactite into the hole after himself. With a grating sound it fell into place. He took a rock screw from his belt and wedged it between the stalactite and the edge of the hole.
“Early warning system,” he explained.
Slightly canted, the platform was ten by six feet and ended at a ledge; over this they saw a thirty-degree diagonal chute. Under the glow of their headlamps it curved down and to the right.
Sam pulled a coil of nine-millimeter climbing rope from his pack, clipped a carabiner on the end, then dropped it over the ledge, letting it clink down the chute. After he’d let out twenty feet of rope the carabiner came to a stop.
“Another level spot,” Sam said. “What we don’t know is how wide.”
“Lower me,” Remi said.
He reeled in the carabiner and secured the rope to her harness. Feet braced against the wall, Sam lowered her down into the chute, letting out slack at her command until she called a halt. “Another platform,” she called up, her voice echoing. “Walls to the left and directly ahead, and a ledge to the right.” Sam heard her boots scuffing over loose rock. “And another diagonal chute.”
“How wide is the platform?”