She put her hand to her ear. ‘Hector? Where have you been?’
‘Trying to find you!’
‘You’re not going to believe this, but I found a tunnel that leads to the sea.’
‘Then use it!’ he shouted. ‘Use it now!’
Sarah froze. ‘What do you mean? I don’t know where it goes, and Jasmine’s still back in—’
‘Sarah, shut up and listen to me! You guys need to leave, like, right freaking now. You’ve got less than three minutes to evacuate. Jack and Josh found a bunch of explosives. The whole network is going to blow, and when it does—’
His voice cut off as she turned and ran.
Not toward the sea, but toward Jasmine.
30
Although there were crucial questions that needed answering, Sarah would worry about them later. For now, her lone aim was saving Jasmine.
Her stomach churned as she ran deeper and deeper into the depths of the city. By the time she had reached the bottom of the steps, she knew something was seriously wrong. She should have seen the flicker of Jasmine’s flashlight; instead, she saw only darkness.
‘Jasmine,’ she screamed, ‘we need to go!’
The tone of her voice made it clear.
They needed to leave now.
‘Jasmine!’ she screamed louder. ‘The tunnels are going to explode!’
Once again, no response.
With adrenalin surging, Sarah sprinted through the tunnel until she reached the stone pictograph that Jasmine was supposed to be documenting for the sake of the mission. But instead of finding Jasmine, she spotted two things that filled her with dread: a broken flashlight, and enough explosives to bring down a building.
Sarah couldn’t believe what she was seeing. Several of the Roman pillars had been rigged with Semtex, right there in plain sight. She could actually see the wires of the detonators and the compact payloads. Unfortunately, none of that mattered. She had been taught how to plant bombs, not defuse them.
The planned destruction didn’t end with the pillars. The entire pictograph had been covered in thick foam. To the untrained eye, it looked like whipped cream, but Sarah had seen it before and knew that eating it would be a horrible mistake. Known as Lexfoam, liquid explosive foam was a combustible compound that could be sprayed onto any surface and, once it hardened, it was nearly impossible to remove.
Like cement with a powerful kick.
Sarah glanced at one of the timers and cursed.
The countdown was forcing her hand.
She wanted to search longer. For Jasmine. For the bombers. For more clues about the tomb. But none of that was possible, not anymore.
Not if she wanted to survive.
As much as it pained her, she knew what she had to do.
She grabbed Jasmine’s flashlight and ran for her life.
Cobb and McNutt charged through the tunnels. They weren’t sure how many men still remained in the underground chambers — if any — but they didn’t have the time to be cautious. They acknowledged the possibility that any turn might lead to a hostile encounter, but if they were trapped in the tunnels when the bombs detonated, neither would survive.
With each chamber, the scale of the impending catastrophe grew larger. They could see the faint light of timers dotting the ceilings of every room. The damage wouldn’t be limited to a single building; it would consume an entire city block.
Cobb still didn’t know when the explosives had been placed. It could have been months since the bombs were hidden on top of the uppermost arches, far from the prying eyes of security guards or government workers who inspected the tunnels below, or it could have been during the last few hours. The packs were portable, Semtex was extremely stable, and timers could be turned on at any time with a remote device.
Common sense led him to believe that their presence in the cisterns had prompted the activation of the devices, but ultimately he knew it didn’t matter. The bombs would go off soon, no matter when they had been placed.
‘What’s the latest on Sarah?’
Garcia answered. ‘She hasn’t come back from getting Jasmine.’
It wasn’t the news Cobb had hoped for, but he had to stay focused. Sarah and Jasmine could take care of themselves. There were others who had no idea of the carnage about to erupt beneath their feet. He wanted to help them.
‘Hector, contact emergency services. Hack into the system, do whatever you have to do. There have to be hundreds of people up there.’
‘You want me to evacuate the buildings?’
‘There’s no time for that,’ Cobb insisted. ‘Tell them to send ambulances, fire trucks, and anyone with paramedic training to the neighborhood above.’
His message was clear: they couldn’t prevent the tragedy, but they could jumpstart the rescue efforts.
Garcia checked the GPS trackers. He could see that Cobb and McNutt had finally made it to the tunnels leading to the first cistern. A few moments more, and they could climb their way to the boiler room.
‘The next chamber is the exit,’ Garcia informed them. ‘The boiler room is clear. You’ve got an unobstructed path to the street.’
As they emerged from the final tunnel, Cobb and McNutt panned their flashlights upward, revealing the ‘unobstructed path’ to the exit.
Garcia had spoken too soon.
The cistern was a death trap.
Water poured from the broken pipe near the ceiling, dousing everything and making every surface slippery to the touch. The arch nearest the boiler room had been toppled, and chunks of broken stone crashed down from above, pried loose by the force of the gushing water.
McNutt raced over to the chiseled ladder on the far side of the room. He reached for the first handhold, but the cascading water prevented a solid grip. He tried again, but it was no use. The ancient grooves were too slick. The ladder was useless.
They attempted to pull themselves up to the next level, just as they had in all the other cisterns. Only this time they were pelted by torrents of water and hammered by falling chunks of debris. Their muscles burned and their fingers ached as they tried to claw their way upward.
Through it all, they could hear Garcia shouting above the clamor of rushing water. ‘Thirty seconds! Get out of there!’
Cobb realized the futility of their effort. The downpour was too great an obstacle to overcome; and even if they could reach the top, someone had destroyed their access to the ledge. There was no way to make it out in time, and Cobb knew it.
McNutt knew it, too, but he wasn’t about to give up. He frantically struggled against the unyielding force of the water. If he was going to die, he would go out fighting — like he had been taught in the Marines.
Fortunately, Cobb had a different idea.
One that didn’t involve dying.
When Sarah reached the water’s edge she offered a final update, hopeful that her message would get through to someone on her team.
‘If anyone can hear me, Jasmine is missing. I looked for her as long as I could, but I can’t wait anymore. I’m going to swim for it. I have no idea where I’ll surface, but I sure would appreciate a ride. With luck you can follow my GPS.’
With that, she took two huge breaths and plunged into the underwater passageway. She pulled herself through the water with powerful strokes, kicking like her life depended on it — which, in this case, it did.
Her flashlight died quickly, and she found herself submerged in darkness. But she refused to panic. Instead, she blocked out the creeping fear of death and convinced herself that if she kept her course and held her breath, she would survive.
Moments later, her faith was rewarded.