And what would she say about the ancestors…?

Then there was another sound – a huge explosion this time that shocked everyone in the tent into silence. When he heard it, Ben jumped to his feet. He was not the only one; once the villagers had shaken off the momentary shock, many of them also stood up and started shouting – scared, no doubt, that something was happening to their families and homes. Sensing a potential riot, the guards started waving their guns towards them, shouting at them to sit down. Gradually the panic subsided; but then there was another loud bang.

This time, Ben pushed through the crowd. 'What's going on?' he asked one of the guards.

'Nothing for you to worry about, sir.'

'There's plenty for me to be worried about,' Ben shouted. 'What's going on.'

'Dynamite explosions,' the guard told him.

'Where?'

'The mine. They're closing it up. Making sure nothing can get in or out.' Suddenly he pushed past Ben. 'Everyone sit down!' he yelled. 'Asseyez-vous! Tout de suite! '

But Ben hardly heard the instructions he was giving the villagers. For the first time in a long while he had allowed a grin to spread across his face.

The mine was shut.

The virus was contained.

They had done it.

It did not take long for the smile to fall from his face, however. As he turned round, his eyes immediately settled on Suliman, who was gazing at him implacably from the other side of the tent. Suliman had not appeared distraught at the sound of the explosions; it was clear that he knew what was going on.

He remained calm; he spoke to nobody; he just kept his eyes on Ben, his gaze steady. He looked for all the world like he was waiting for something.

Waiting for his chance.

Ben stayed close to the UN guards, unsure what Suliman was planning, but certain that he was planning something. Suliman realized that Ben knew what he – and his bosses – had been up to. One word from him to the right person could incriminate them all. Ben knew what Suliman was capable of; he knew that Suliman would do whatever it took to silence him.

Time passed, and Ben grew increasingly nervous. The strain of waiting for Suliman to make his move became increasingly hard to bear in that hot, crowded, terrifying place. Eventually he couldn't stand it any more. He stood up and approached one of the guards who were standing at the entrance to the quarantine tent. 'I need to get out of here,' he said quietly.

The guard shook his masked head. 'No one leaves,' he stated sternly.

'Look, you don't understand. I'm not safe here. That man…'

'No one leaves,' the guard repeated. He was joined by his colleague, and they both clutched their rifles. Ben looked at them in desperate frustration before furiously turning his back on them and going back to find his place.

The hours ticked slowly by. As darkness fell, the tent became quieter, but somehow Ben knew Suliman was not asleep. He did his best to stay awake, but as the night passed, his body became overcome with exhaustion, and no matter how many times he told himself to remain wary, his heavy eyelids soon started to flutter and close.

It happened just before morning. Ben, along with everyone else in the quarantine camp, had been drowsing, and the UN guards on duty were standing outside of the entrance to the tent. Suddenly Ben was awakened by a fist across his mouth and his neck in a deadlock. 'Make one noise,' Suliman's voice said, 'and I will break your neck.'

Ben's eyes shot open and he struggled to breathe.

'Stand up very slowly.' Suliman's voice was snakelike. Ben did as he was told. In the darkness, he became aware of someone else by his side – one of Suliman's accomplices. He could also tell that a few people around him were awake; they could sense that something was happening, but they weren't going to get involved. Suliman pushed Ben to the side of the tent, his grip round the boy's neck deathly tight, while his man ripped the bottom of the canvas up to create an exit.

Within seconds they were outside. Suliman spoke to his accomplice in Kikongo and the man slipped back into the tent to keep a lookout as Ben was marched swiftly and silently away.

They stopped. Ben was feeling light-headed and was unsure exactly where they were, but Suliman appeared to have been able to dodge the peacekeepers in the relative stillness of the night. He didn't speak. He just started to tighten his grip.

Ben tried to shout out, but the only noise that came was a choking sound from his throat. His arms flailed in the air as he tried to struggle away from his attacker, but Suliman kept his grip tight and hard, and gradually Ben's movements started to suffer for lack of oxygen. His efforts became weaker and weaker; everything started to spin; his limbs became powerless.

And then, as though in a dream, Ben saw someone approach from the darkness. His gait was stumbling, his expression more dead than alive. But even in his state of strangulated semi-consciousness, he recognized the figure that was drawing nearer.

It was Abele.

The expression on his face told of the effort of every move. Painfully, his breath rasping, he bent down and picked a jagged stone about the size of a grapefruit from the ground. He staggered towards the struggling pair and with what strength he had left in his arms brought the stone firmly down on the top of Suliman's head.

The mine manager roared with pain, but did not let Ben go; so Abele struck him a second time. This time his grip loosened, and Ben – drawing great gulps of air into his protesting lungs – managed to get away. Now Suliman was upon Abele, who stood no chance against a man with his full strength at his disposal. In an instant, Abele was on the ground; Suliman had taken his stone from him and was preparing to pummel it into his head.

'Stop!'

The UN guards had been alerted by Suliman's roar, and suddenly there were several of them – Ben couldn't count how many in all the confusion – guns at the ready. Suliman's arm stopped in mid-air as he caught sight of the peacekeepers, but his face was a picture of indecision and fury.

'Drop it!' one of the masked figures shouted.

It all happened in a split second. There was a wildness in Suliman's eyes that suggested his anger had taken hold of what good sense he had; with a hiss he started to bring the stone down towards Abele's head.

It only took one shot.

The bullet from the peacekeeper's rifle was aimed to kill and it entered Suliman's skull right in the middle of his forehead. The mine manager was thrown down to the floor with a thud, and in the bright moonlight Ben could see the blood dripping from his head into a sticky puddle. There were a few seconds of horrified silence, during which time Suliman's right foot twitched alarmingly; but it was clear to everyone watching that he was quite dead.

Ben's instinct was to run to Abele, to see if he was OK. But as he tried to do so, he felt himself being restrained from behind. 'Get a stretcher here,' an American voice called from somewhere. Within moments, Abele was being lifted onto a stretcher and carried towards the hospital tent.

'You're going to be OK, Abele,' Ben shouted, his voice wavering. But he didn't know if that was true. And of course, Abele didn't reply. Ben listened as his noisy breathing disappeared into the night, before he was led silently back to the quarantine area, his body shaking with the brutal horror of what had just happened.

The doctor had told Ben he would be in the quarantine tent for two days before he received the result of his test. In the event, it was three.

It was gruelling. Every couple of hours, someone would start displaying the signs of the virus; they would instantly be removed by the faceless medics and taken, often shouting and screaming, to the medical tents. Word had got round now that few who entered that place would return, and the constant acrid smell from the incinerators served as an ever-present reminder of what would happen to them. Ben felt like he was in some kind of concentration camp, waiting for the inevitable call, and he started to share the increasing panic that the occupants of the tent were experiencing. Arguments began to break out as the villagers demanded to know what was going on; occasionally the guys from the UN had to settle them by force, which did nothing to ease anyone's fears.