Skeleton Key by Anthony Horowitz

afraid I must leave you. I have work to do.”
    Alex looked in. The Salesman was standing at a table, pouring himself a second glass of wine.
    Alex looked back over his shoulder. There was no one there. Nothing had happened. Why hadn‟t the petrol caught fire? Had the wind blown out his makeshift fuse?
    And then it exploded. A great mushroom of flame and black smoke leapt into the air at the back of the boat, snatched away instantly by the wind. Somebody shouted. Alex saw that the petrol had splashed all over both decks. There was fire everywhere. The canopy right above his head was alight. Whatever had been packed underneath the tarpaulin was also blazing. More shouting.
    Footsteps thudded towards the stern deck. Now was the time to move.
    “See what is happening!”
    Alex heard the Salesman snap the command and a second later the deckhand came racing out.
    He disappeared round the other side of the cabin.
    That just left the Salesman himself, on his own with Turner. Alex waited a few seconds, then stepped into the doorway, once again reaching into his trouser pocket. Turner saw him before the Salesman. His eyes widened. The Salesman turned. Alex saw that he had put down his glass and picked up a gun. For a moment neither of them moved. The Salesman was looking at a fourteen-year-old boy, barefoot and naked from the waist up. It obviously hadn‟t occurred to him that Alex could be any threat to him, that it was this boy who had set fire to his boat. And in that moment of hesitation, Alex made his move.
    When he brought his hand up, he was holding a mobile phone. He had already dialled two nines before he‟d gone in. He pressed the button for a third time as he aimed with the phone.
    “It‟s for you!” he said.
    He felt the phone shudder in his hand and, silently, the aerial spat out of the top, the plastic peeling back to reveal a shining needle. It travelled across the cabin and hit the Salesman square in the chest. The Salesman had reacted fast, already bringing his gun round. But a second later his eyes rolled and he slumped to the floor. Alex jumped over him, picked up a knife from the table and went over to Turner.
    “What the hell…?” the CIA man began. Alex could see at once that he wasn‟t badly hurt. At the same time, his mood didn‟t seem to have improved. He looked from the phone to the unconscious figure of the Salesman. “What did you do to him?” he asked.
    “He got the wrong number,” Alex said. He cut through the adhesive tape.
    Turner got to his feet and snatched up the gun that the Salesman had dropped. He checked the clip. The gun was fully loaded. “What happened?” he demanded. “I heard an explosion!”
    “Yeah. That was me. I set the boat alight.”
    “What?”
    “I set fire to the boat.”
    “But we‟re on the boat!”
    “I know.”
    Before Alex could say any more, Turner moved, twisting round, snapping into combat position, arms up, legs apart. There was a stairwell at the far end of the cabin. Alex hadn‟t noticed it before. A figure had appeared, coming up from below. Turner fired twice. The figure crumpled back down. Turner stopped. Black smoke was seeping into the cabin. There was a second explosion and the entire boat rocked as if seized by a sudden squall. There was shouting outside on the deck. Looking out of the window, Alex could see flames.
    “That must have been the second petrol tank,” he said.
    “How many tanks are there?”
    “Just the two.”
    Turner seemed almost dazed. He forced himself to a decision. “The sea…” he said. “We‟re going to have to swim.”
    The CIA agent went first, edging sideways out of the cabin. Suddenly the deck was full of people. There were at least seven of them. Alex wondered where they had all come from. Two of them, young men in dirty white shirts and jeans, were fighting the flames with extinguishers.
    There were two on the roof, another on the deck. All of them were shouting.
    Smoke was trailing into the sky behind