The plane continued to pick up speed and was soon outpacing the guards’ truck. Through the open ramp Juan could see them fire off a few rounds in frustration before the driver braked hard and turned to give chase to the rest of Mafana’s men. A third and then fourth truck roared out of the prison gate after them.

Tiny hauled back on the yoke and the old Caribou lifted off the rough field. The vibrations that had built until Juan was sure he’d lose a filling finally evened out. Mindful that the ramp would have to remain open, the patients were moved to the front of the aircraft, leaving the area at the rear open. Linc stood on the ramp, a safety line stretching from a D ring on the floor to the rear of his combat vest. He wore a helmet with a microphone so he could talk with Tiny in the cockpit. There was a long crate at his feet.

Juan clipped himself in, too, and cautiously approached the big SEAL. Hot wind whipped through the cabin as Tiny banked the plane to come in behind the guards’ vehicles. With their newer trucks they had already eaten away half the lead Mafana’s troops had managed to gain on them.

The trucks were approaching a deep valley between towering dunes when the plane hurtled over the two sets of vehicles. There was less than a half mile separating them. Tiny kept them at a thousand feet as he flew along the length of the valley, but in an instant the valley came to a sudden end. Rather than opening up again onto open desert, the valley was only three miles long, a dead end. Its head was a sloping dune so steep that the trucks would have to slow to a walking pace to reach the summit.

“Bring us around again,” Linc shouted into his mike. “Come up behind them.”

He motioned for Mike and Eddie to join them. The two men quickly got themselves secured, leaning over to maintain their balance as the plane banked around. Linc opened the crate. Inside were four of Mafana’s RPGs. They were the reason Juan had sent one of Mafana’s men to hook up with Linc.

Linc handed one of the rocket-propelled grenade launchers to each of them.

“This is going to have to be some pretty fancy shooting,” Mike shouted dubiously. “Four trucks. Four RPGs. We’re doing a hundred and twenty miles an hour and they must be close to fifty.”

“Ye of little faith,” Linc yelled back.