Something dark showed in the light a moment before the sand settled over it. She scooped her hand into the sand and pulled it out. At first she thought it was a coin, heavy and crudely stamped. A small tab jutting from one side almost made it look like a pendant from a necklace. On closer examination, she realized it was a lead seal, often used to secure bolts of fabric carried on merchant ships.
Sam photographed the front and back. Remi dropped it into her bag, then looked at her dive watch to make sure they hadn’t lost track of time. But no, they had at least twenty more minutes, and so she and Sam continued their exploration. He pointed toward a shark swimming at the outer edge of their dive zone. The flat, edgy snout and stripes along its side told her it was a juvenile tiger shark. It looked about seven feet, and she nodded that she saw it, watching for a bit. The shark seemed uninterested in them, swimming calmly, apparently content from feeding elsewhere.
Sam swam over the top of the rockslide, getting a reading from his metal detector somewhere in the rock pile. It turned out to be a fishing weight. He changed his direction, swimming along the edge of the rocks.
Remi hadn’t finished exploring the shallow rock cave and decided she’d better take advantage before the eel returned. Her metal detector pinged on the left side, toward the back, and she reached in, brushed at the sand, but didn’t find anything. Something was in there, enough to send a strong signal.
Sam indicated that it was time to leave. Figuring it was probably some fishhook, she was about to give up, but then shined her light between the rocks on the left side, brushed at the sand, scooping it out of the cave mouth, excited when she felt something smooth beneath her gloved hand.
She waved Sam over, pointing down into the rocks.
Sam stopped her, pointing upward, clearly worried that if they weren’t careful, they might possibly trigger a small landslide on their own. She nodded her understanding. She’d be careful. If she could just move a few of those rocks, she could get to the artifact. She managed to pull out one rock, moving it to the side. And then another, which rolled down to the bottom of the pile. Several rocks slid out beneath it but didn’t seem to move anywhere else. When she turned on her light and aimed it into the area she’d been working, she saw it. A small cannonball. Disappointed, she reached down, picked it up.
She felt a slight punch on the back of her thigh and spun around—Sam was teasing her about her great find.
But it wasn’t Sam.
A larger tiger shark circled around, this one about eight feet. It dropped to the ocean floor, zigzagging, turning from graceful swimmer to aggressive predator as it shot toward her.
Remi fell back toward the rocks, kicking out with her fins, striking the shark on its snout with her metal detector. It turned, then darted toward her again. She held the cannonball, hoping to smash it against the shark’s face as it came at her. It hit the beast’s flesh, then fell from her grasp. She kicked back, up against the rocks, sending several down the pile. The rocks beneath her shifted, then tumbled down, one after another, turning the clear water opaque.
Remi, lost in a cloud of silt and sand, kicked away from the rocks as she slid down, worried when she couldn’t see the shark.
Heart pounding, she turned about, swinging her metal detector frantically. A dark form swam toward her. She gripped the metal detector, ready to ram it, when Sam emerged from the cloud of silt.
She reached out, grasped his hand, relief flooding through her as he pointed to the shark swimming off in search of easier prey.
They’d have to come back tomorrow and try again. She turned to survey the damage the rocks had done to what was left of the wreck site.
As the water cleared, her gaze lit on a dark circle about the size of a saucer. It was half buried in the silt and precariously positioned partway beneath the rocks and sand.
Sam saw it, too. He eyed the rocks, undoubtedly worrying that the slightest of movement could send them down farther, and he motioned for Remi to keep watch as he slowly worked the sand beneath the object until he was able to slip it out, the rock pile remaining intact.
He handed her the disk, and her thrill of excitement that it might be the missing cipher wheel died at the realization it was only a small tin plate. Sam photographed the front and back. She dropped it into the dive bag, then glanced at her watch. They were on the last few minutes of air. They needed to end the dive. He gave her a thumbs-up and they began their ascent.
As soon as they broke through to the surface, she pulled her mouthpiece out, turning to Sam. “Not bad, Fargo!”
Sam looked anything but excited.
“What’s wrong?” she asked.
“Get behind me,” he said, then nodded toward the boat.
When she turned, she saw Nuno leaning over the side, a gun in his hand. And it was pointed at them.
Seventeen
Hand it over.” The young man’s dark eyes bored into Sam as he treaded water near the boat. “Now.”
“Nuno,” Sam said. “You don’t want to do this.”
“Yes. I do.”
“Why?”
“It doesn’t matter. Hand it to me.”
“And what?”