Remi cupped her ears and nodded.
Sam braced his gun hand on his opposite forearm, took aim, and pulled the trigger.
The gun’s report was instantly overwhelmed by a
Sam and Remi peeked their heads above the bulwark but for ten full seconds could see nothing but a fine mist filling the cavern. Slowly it cleared. They climbed out and walked to the edge of the pier and looked down.
“Never had any doubt,” Remi murmured.
The Marder-class mini submarine
“Beautiful,” was all Sam could say.
CHAPTER 20
With a reverberating gong that both Sam and Remi felt in their heads, the sub glanced over another boulder, tipped hard to port, then snapped upright and nosed over, plunging back into the river’s main channel. Water sluiced over the acrylic dome, obscuring Sam’s view for a few moments, then cleared. He clicked on the flashlight and shined it over the bow, but could see only rock walls flashing past on either side and whitewater crashing over the nose cone. The deadly seriousness of the experience notwithstanding, it was a lot like a ride at Disney World, Sam decided.
“You okay back there?” he called.
Remi, lying behind the cockpit seat, arms braced against the hull, shouted back, “Peachy! How long have we been going?”
Sam checked his watch. “Twenty minutes.”
“My God, is that all?”
After recovering from the mild shock that their plan had actually worked, Sam and Remi had climbed into the water and hung from the sub’s bow line, lifting the nose a few more inches off the surface and allowing the rest of the water to drain out. Remi had then crawled inside and closed both scuttles.
From there they’d had little work to do: check the sub for leaks and shore up the inside with a few carefully positioned planks from the catwalk. The fifty-gallon ballast tanks—a four-inch pipe running lengthwise down the port and the starboard side—were full and nicely balanced the sub.
Satisfied they were as prepared as possible, they’d caught four hours of sleep huddled together on the pier in a circle of lanterns. At dawn, they’d risen, eaten a breakfast of tepid water and damp beef jerky, then piled a few essentials into the sub and climbed aboard. Using a catwalk plank, Sam had paddled the sub to the mouth of the river tunnel, then closed the hatch and held on.
So far the sub’s reinforced aluminum hull was holding up well, but they both knew geology was also on their side: While the tunnel walls were still jagged, the rocks and boulders in the channel itself had long ago been smoothed by erosion, leaving no sharp edges to rip the hull.
“Brace yourself!” Sam called. “Big rock!”
The sub’s nose slammed squarely into the boulder, rose up and over the crest, then veered left. The current caught the tail section and spun it around, slamming the hull against the wall.
“Ouch!” Remi shouted over the rush.
“Okay?”
“Just another bruise for my collection.”
“We’ll get you a Swedish massage when we get back to the Four Seasons.”
“I’ll hold you to that!”
One hour turned into two as Sam and Remi rode the rapids, the sub caroming off the walls, vaulting over boulders, and tossing from one side to the other in the water. Occasionally they would find themselves in wider, calmer parts of the river, allowing Sam to open the dome and let in some fresh air to supplement the oxygen Remi was intermittently pumping into the space via their remaining scuba tank.
Almost like clockwork every few minutes the sub slammed into a jumble of boulders and they would find themselves beached, the sub either lying on its side or perched above the rapids, balanced like a teeter-totter. Each time either they would dislodge themselves by gently rocking from side to side until the sub slipped back into the channel or Sam would have to open the dome and push and lever them free using his plank paddle.
Nearing their third hour of travel, the sound of rushing water suddenly faded. The sub slowed and began spinning lazily.
“What’s happening?” Remi called.
“Not sure,” replied Sam.
He pressed his face to the dome and found himself staring up at a vaulted, stalactite-encrusted ceiling. He heard a scraping sound and looked left just in time to see a curtain of vines close over the dome like the swaying carpet arms inside an automated car wash. Sunlight burst through the dome, filling the interior with a yellow glow.
“Is that the sun?” Remi said.
“You bet it is!”
The hull scraped over sand, slowed, then came to a gentle halt. Sam peered ahead. They’d run aground in another lagoon.
“Remi, I think we have arrived.”
He unlatched the dome and swung it open. Cool, salt-tinged air rushed through the hatch. He draped his arms outside, letting them hang, then leaned his head back and let the sun wash over his face.
He heard something off to his left, opened his eyes, and turned his head. Sitting on the sand ten feet away were a young couple wearing dive fins and scuba harnesses. Mouths agape and frozen in place, they stared at Sam. The man had a farmer’s tan, the woman white-blond hair—Midwesterners on a tropical adventure.
“Good morning,” Sam said. “Doing a little cave diving, I see.”
The couple nodded in unison, saying nothing.
“Be careful you don’t get lost in there,” Sam offered. “It can be a little tricky getting back out. By the way, what year is it?”
“Leave the nice people alone, Sam,” Remi whispered from the back.
CHAPTER 21
Heaven,” Remi murmured. “Absolute heaven.”
True to his word, upon returning to their Four Seasons villa, Sam had, after they’d shared a long hot shower, ordered first a sumptuous lunch of seafood salad, hot sourdough bread, and a tropical fruit bowl, then a pair of masseuses, who’d spent an hour giving them a hot stone massage before moving to deep-tissue Swedish. Sam and Remi lay side by side on the veranda, the sheer curtains billowing around them in a light tropical breeze. Down the beach, the breakers gently washed in and out, nature’s own lullaby.
Sam, hovering on the edge of sleep, simply muttered, “This is living.”
The surprised couple they’d encountered upon their exit from the cave had in fact been Midwesterners—Mike and Sarah, from Minnesota and on their honeymoon. After three tries, they’d answered Sam’s “Where are we?” question: on Rum Cay’s northern coast between Junkanoo Rock and Liberty Rock. They had, by Sam’s calculation, traveled some nine miles along the underground river.
Mike and Sarah had graciously offered to give them a ride—and a tow to the mini sub, to which Sam had grown quite attached—down the coast in their rented boat. Forty-two hours after first touching down at Rum Cay, Sam and Remi were back at their landing beach. Their host, the mysterious beachcomber, was nowhere to be seen,
