“. . . argo!”

Sam rolled onto his back, caught his breath. “Here!”

“Eleven minutes.”

Sam lay still for thirty seconds, picking at his plan until satisfied it could work. But, then again, could was a far cry from would. He had no choice, no other options, and virtually no more time.He picked his way to the bottom of the bowl, then made his way back to the clearing. “I found something.”

“Are you lying to me?” Rivera replied.

“No.”

Rivera stood up. “Let’s go.”

“Give me a minute.”

Sam walked over to Remi and sat down beside her. She opened her eyes and smiled at him. “Hi.”

“Hi. Does it hurt?”

“No. It’s dull throbbing. I’ve been counting my heartbeats to pass the time.”

Sam chuckled. “Never bored, are you?”

“Never.”

“I found something. I’m taking Rivera there now.”

“Is it-”

“I think so. I think we found it.” He leaned over and kissed her on the cheek. “I’m going to take him in there,” he whispered. “With any luck, I’ll be coming out alone.” “Then I’ll see you when you get back.”

Sam stood up and turned to Rivera. “Ready.”

“Lead the way.”

SAM TOOK RIVERA to the exit, then handed him the flashlight and stood to one side as Rivera ducked his head into the entrance. Rivera tossed the flashlight back to Sam.

“What’s in there?”

“I didn’t go far.”

Rivera paused. Sam knew he was debating whether the Fargos had suddenly become extra baggage.

“But as far as I went, I got lost three times. In one of the side tunnels there’s a drop-off; beyond that, I saw something on the wall. A symbol of some kind.”

This did the trick. Rivera gestured for Sam to enter the tunnel. He stepped inside and hunch-walked until the walls and ceiling widened out. Rivera was a few steps behind.

“Which way?”

Sam feigned confusion for a few seconds, then headed right and followed the sloped floor’s dips and rises and turns until finally they emerged into the salt cavern.

“Are those waves?” Rivera asked, looking around.

“I think so. There’s probably a maze of sea caves down there.”

“And the walls? Crystallized salt?”

“Sea salt, blown up from the caves. Do you see the dark streaks?” Sam pointed the flashlight at the nearest wall. “Take a look.”

His gun fixed on Sam’s chest, Rivera sidestepped to the wall.

Sam said, “It’s some kind of mineral deposit. Emerald or jade.”

Nodding absently, Rivera followed the veins with his eyes as they spiraled up the wall and across the ceiling. “Where’s this side tunnel?”

Careful to keep the beam off the floor, Sam shined the flashlight across the cavern. He held his breath, half expecting Rivera to notice the cairns and their arrangement, but he didn’t.“Go on.”

Sam started across the floor. Heart thudding in his chest, he tried to keep his pace steady, watching the placement of his feet as he stepped over holes or along their edges. As he crossed the cavern’s center point, there came a crackling sound, like pond ice giving way. Rivera cursed.Sam turned around.

“Don’t shine that in my eyes, damn it!”

Rivera had stepped into one of the smaller holes and fallen through up to his crotch. He struggled to extricate himself, straining to get his free leg under his body. He tried twice more, then stopped.“You’re going to come over here and help me up. If you-”

“I know,” Sam replied. “You’ll shoot me.”

Flashlight in his left hand, Sam strode forward. He flicked the beam into Rivera’s eyes, then down again. At the same time he stuffed his right hand into his pocket, grabbed a fistful of salt, and pulled it out again.“Damn it!” Rivera growled. “Keep the light-”

“Sorry.”

“That’s close enough. Just give me your wrist. Don’t grab ahold of me.”

Sam extended his wrist. Rivera grabbed it and used Sam’s counterweight to pull himself free. Sam felt Rivera’s weight shift forward. He twirled the flashlight in his fingers, shining the beam directly into Rivera’s eyes.“Sorry,” Sam said again.

Even as he said the words he was moving, sidestepping left, using Rivera’s momentary blindness to get the gun barrel off him. Sam swung his right hand forward as though throwing a baseball. The salt hit Rivera squarely in the eyes. Knowing what was coming, Sam dropped to his belly.

Rivera screamed and started pulling the trigger. Bullets thudded into the walls and ceiling. Salt crystals rained down, sparkling in the glow of Sam’s flashlight. Rivera spun wildly, trying to regain his balance as he staggered across the floor, the gun bucking in his hand.

Sam pushed himself to his knees, coiled his legs like a runner in the starting blocks, then pushed off and charged. Rivera heard the crunch of Sam’s footfalls and spun toward the sound, firing. Still running, Sam dropped back to his belly and skidded across the floor, the salt crystals ripping at his chest and chin. He went still. Held his breath.

Rivera whirled again, trying to pinpoint the sound. He lost his balance again, lurched sideways, and stepped squarely into another hole. With a zipperlike crackling sound, Rivera’s legs plunged through. He spread his arms to arrest his fall. The gun dropped from his hand and skittered across the salted floor, coming to a stop beside Sam’s face.He grabbed the gun and climbed to his feet.

“Fargo!” Rivera screamed.

Sam walked over to the hole. Rivera arms were fully extended. Only the palms of his hands were touching solid ground. Already his arms were trembling; the tendons in his neck strained beneath the skin. Still blinded by the salt, Rivera rotated his head wildly from side to side.Sam crouched down beside him.

“Fargo!”

“I’m right here. You’re in a bit of a pickle.”

“Get me out of this thing!”

“No.”

Sam shined his flashlight into the hole. Salt-encrusted rock outcroppings jutted from the walls like barbs, leaving only a two-foot-wide gap in the center. Far below, Sam could hear the roar of waves crashing against rock. He grabbed a nearby softball-sized stone, dropped it into the opening, and listened to it ricochet off the rocks until the sound faded.

“What was that?” Rivera asked.“That’s karma calling,” Sam replied. “About a hundred feet of it, based on Newton’s Second Law.”

“What the hell does that mean? Get me out!”

“You shouldn’t have shot my wife.”

Rivera growled in frustration. He tried to press himself upward but managed only a few inches. He slumped back down. His head dipped below the level of the floor. Beneath Rivera’s shirt, his muscles quivered with the strain.

“I just realized something,” Sam said. “The more your palms sweat, the more the salt dissolves beneath them. I think that’s what financial experts call diminishing returns. It’s not a perfect metaphor, but I think you get my point.”“I should have killed you.”

“Hang on to that thought. Soon it’s all you’re going to have left.”

Rivera’s left hand slipped off the edge. For a split second he clawed at the ground with his right hand, his nails shredding, before he tipped sideways and started to fall. He landed back first on one of the outcroppings, shattering his spine. He screamed in pain, then slid off and kept tumbling, his head slamming on rock after rock before disappearing from view.

TWO WEEKS LATER,

GOLDFISH POINT, LA JOLLA, CALIFORNIA

REMI LIMPED INTO THE SOLARIUM AND EASED HERSELF DOWN ON the chaise lounge next to Sam’s. Without looking up from his iPad, Sam said, “You’re supposed to be using your cane for at least another week.”“I don’t like my cane.”

Sam looked over at her. “And you call me stubborn. How’s the leg feel?”

“Better. The doctor says I’ll be fit for full duty in a few weeks. Given the nasty alternative, I couldn’t be happier.”

“By ‘nastier,’ I assume you mean starving to death inside the crater of a dead volcano?”