Above them two helicopters now circled, the drone of their blades more menacing than ever. There was a new sound, too, top notes cutting through the background noise. Marchant couldn’t work out what it was at first, but then he realised. Runners everywhere were synchronising and calibrating, making final adjustments to their bleeping stopwatches and heart monitors. He glanced instinctively at the hands of his own silent watch. In the same instant, the starter’s klaxon hooted, oddly hesitant, an uncertain call to arms. The only thing Marchant could do was run.
It was fifty minutes into the marathon that Marchant first noticed him, tucked behind a small knot of runners twenty yards ahead. The man–Asian, mid-thirties, fragile frame, heavy glasses–was moving at a similar pace to them, but looked uncomfortable, stumbling on the cobbles as he rounded the bow of the Cutty Sark. He was sweating profusely, too, even for this heat; but it was the belt around his waist that had caught Marchant’s well-trained eye.
Leila’s talk of Cheltenham had put Marchant on edge, reawakening old skills. The world around him was suddenly full of threats again, of brush passes and dead drops, and the belt troubled him. It consisted of a number of pouches, each one containing an isotonic energy drink. The drinks were in soft, bulging cartons, silver with small orange screwcaps. He’d seen other runners loading up with drinks belts at the start, but none with so many pouches.
It was just a precaution on a hot day, Marchant told himself, lengthening his stride. Running had always come naturally to him, a benefit of being tall. He caught up with the group as they left Greenwich for Deptford, heading down Creek Road. The crowds were thinner here, but still noisy, heckling runners with the names they had written on their vests. ‘Where’s Grommit?’ someone shouted, as a fun-runner dressed as Wallace ran past. ‘Go Dan!’ two young women screamed. For a moment, Marchant thought they must be supporting someone else, but then he remembered Leila had insisted on writing ‘Dan’ on the front of his own running vest. He turned his head to take another look but they were already lost in the crowd, cheering on other strangers.
‘What are you doing?’ Leila called out from behind Marchant. ‘We were doing fine.’
‘Give me a minute,’ he said. The group of runners ahead of the man also bothered him. Two were heavily set, struggling in the heat and bearing all the unsubtle hallmarks–bulging vests, GI One haircuts–of the American Secret Service. The third man was lean and sinewy, a born runner. He looked familiar.
As Marchant drew near, he knew at once that something was not right. He could taste it in his mouth, like corked wine. His father had always taught him to trust his instinct, whether it was a bad feeling on first meeting a potential agent or pulling out of a rendezvous for no other reason than that it felt wrong. It wasn’t tradecraft; it was more visceral than that.
Marchant positioned himself as close as he could behind the man, trying to get a better look at the belt, but the running field was still tightly packed. He counted six drinks pouches. They were eight miles into a hot race, but none of the pouches had been opened.
Then he noticed what looked like an oversized watch on the man’s wrist. Leila had something similar for long runs. It was a basic GPS receiver, relaying her position, speed and when she should speed up or slow down. (He remembered how she had once said it beeped ruthlessly at her when her pace dropped below a pre-programmed speed.) It wasn’t as sophisticated as the military units he and other case officers had been issued with in Africa, but it wasn’t a toy either.
‘What’s happening?’ Leila said, appearing on his shoulder. ‘We were going so well.’
Marchant nodded at the man in front and slowed up a little, falling away from the group.
‘See the guy with the belt,’ he said, as they both slowed to their former pace. Marchant was short of breath as he continued. ‘I don’t think those cartons are for drinking.’
‘Why not?’ Leila asked.
‘And that man up there, the tall one all in white. Isn’t he the US Ambassador?’
‘Turner Munroe? Dan, what’s going on?’
Marchant knew what Leila was thinking. He was deluded, still drunk from the night before, seeing things where there was nothing to see. He’d watched it himself in other case officers who had been called in from the field and tethered to a desk in Legoland (the name employees had given to MI6’s headquarters in Vauxhall), drinking themselves to death to alleviate the boredom of captivity. In his case, though, he didn’t even have a desk. That was the hardest part: knowing there might never be a way back. And now here he was, hard on the heels of a runner in the London Marathon, convinced that the man was shortly to kill himself and everyone around him, including the US Ambassador to Britain. He’d run agents who were less paranoid.
‘What exactly did Cheltenham pick up last night?’ Marchant asked, breathlessly.
‘Nothing like this.’ He guessed Leila was already making her own calculations, weighing up risks. ‘How can you be so sure about the belt?’
‘By asking him,’ Marchant replied.
‘Don’t be stupid, Dan.’
‘For a drink.’
‘Dan…’
Marchant ignored her and moved towards the runner again, pulling up alongside. The man was clearly in trouble. Sweat was pouring off him as his head bobbed like a donkey’s.
‘Hot one,’ Marchant said. The man glanced at him nervously and looked ahead again, wiping his thick eyebrows with the back of his hand. ‘Did you see that last drinks station?’ Marchant continued. ‘Crazy. Shouldn’t have to queue for water, not on a day like this.’ Marchant smiled at the man, nodding towards his belt. Inside, his stomach turned. He was right. ‘Couldn’t have one of yours, could I?’
‘Who are you?’ the man said aggressively. His accent was thick, from India: another cell from the subcontinent. Marchant knew immediately there would be consequences, for him, for his father, but they would have to wait.
‘No problem. Any idea who that is?’ Marchant gestured at the US Ambassador. ‘Brought his own fan club with him.’
‘Please, stay away,’ the man said.
The two of them ran on in silence. Marchant’s mind was racing. Post 7/7, it was bulky clothing that had attracted attention. Here was a man wearing explosives on the outside, and it was so bloody bold no one had noticed. The pouches must be wired together inside the belt, he thought. But if the man was a running bomb, why hadn’t he blown himself up by now? Why was he warning him to stay away? And if his target was the Ambassador, he could easily have bunched in close to him and his babysitters and taken them all out before now.
He remembered the last suicide bomber he had seen, in Mogadishu. They had been talking in the marketplace, making nervous progress. Then a phone rang. Twice. Marchant had run for his life. The man’s head was found on the corrugated-iron roof of a nearby café. The bomber hadn’t wanted to die, Marchant was sure of that. Afterwards, in the British Embassy bar, as his hand shook the Johnnie Walker out of his glass, he kept telling himself, over and over, that the bomber had not wanted to die. It had made it easier to understand. The handler knew it too, which is why he had detonated the bomb himself.
This time, he had to keep his man talking, establish the method of detonation, hope the mobile networks would be too busy for a phone call from a third party. Like the bomber in Mogadishu, this man was also not a volunteer. He had been forced to wear the belt. It was happening more and more these days: genuine suicide bombers were becoming hard to find. Trust your gut feeling, his father had said.
‘That watch you’ve got there,’ Marchant said. ‘GPS?’
‘Sat-Runner,’ the man replied. Better, Marchant thought, much better; a gear and