Sam’s kids looked much the same as they had when I first saw them. They sat together, wrapped in blankets. Like Sunday, they stared at everything going on around them, but their expressionless eyes told me they were on another planet. Whatever it was called, it must have been a dull and scary place.
My claymore plan was simple – it had to be, because there was no time. And simple equals it’s more likely to work.
I was going to make just two giant claymores with the ANFO and as much metal as I could muster, then site them so that anyone coming along or across the river would get the good news early.
There’s nothing sophisticated about a claymore. Even the nice factory-made American ones are just an explosive charge shaped to direct a mass of steel ball-bearings to the front of the HE like shotgun pellets. They are rated as small anti-personnel mines, but the ones I had in mind were going to be big anti-everything mines.
I kept on towards the valley entrance, fighting the lethargy in my legs and the pain in my head. Maybe it wasn’t down to dehydration. Maybe it was because I couldn’t get out of my head what Sam had said about Standish’s big Swiss cheese and the Chinese connection.
4
Behind me, a human train was forming, each truck loaded with plastic fertilizer sacks of ANFO.
I shouted up at the guys in the sangars as I made my way to the valley mouth. I wanted them to know exactly who was moving into their arcs. ‘I’m going there, over there!’ I gave them a thumbs-up and a couple waved.
I wanted two holes, not too deep, one on each side. The theory was that when the claymores were detonated, a shallow pit would contain the majority of the main force of the explosion, and send the shrapnel that had been packed in front scything into the advancing enemy.
Problem was, ANFO is low explosive. The combustion rate is slow, under six thousand metres per second, which is why it is used in mines and to make craters. High explosives, like the stuff in the box I had under my arm, has almost instantaneous combustion, with a shockwave that can be directed at the enemy.
With more HE, I could have built the claymores with oil drums – placed the HE at the bottom, packed the metal on top, and pointed them towards the killing area. But with low explosive, I had to try to contain the detonation and focus it in one direction. It would still take a huge lump out of the hill, but with luck I could direct most of the blast forward – smack into the LRA.
I had never made one of these things with low explosives before – it had always been HE. But it seemed logical that there still had to be a buffer between the explosive and the metal I hoped to be piling in front of it – in this case a mud wall at least a foot thick. Without one, the high detonation temperatures would just melt the metal in front of it, producing a big blob of white-hot molten alloy – great if you wanted to penetrate a tank, but not if you wanted to devastate an area.
My hope was that a buffer would give the claymore’s gases a nanosecond to build pressure before they broke through and blasted bits of metal into LRA flesh and bone across the killing ground. Of course, some of the energy would be converted into a fucking big crater as well, but I hoped I’d direct at least 60–70 per cent of the pressure wave outwards, towards the targets.
Fuck it, there was only one way to find out.
I scrambled up and down the high ground on the right side of the entrance. The ideal hole would be at least three metres above the valley floor for a better spread of blast over the killing ground.
I was also looking for the perfect angle: when the thing was detonated, I wanted the shrapnel to blast the two hundred or so metres across the front of the valley, but also along the riverbank towards Nuka, and over the river into the trees.
I aimed to do exactly the same on the opposite side, which would cover the way Silky and I had left earlier, upstream. Just as the beaten zones of the GPMGs lay over each other like circles in a Venn diagram, when these things kicked off nothing in the killing ground would survive.
I found a dugout rather than a shaft, which couldn’t have been better. It looked like they’d stopped digging when they’d encountered a different, grey-coloured rock, or maybe just got bored. Whatever, the shallow cave would contain and direct the explosion perfectly. Had it been a shaft, a lot of the force would have been dissipated into the ground.
It looked like someone’s home. There were the embers of a cooking fire inside a small ring of rocks, and the usual aluminium pot. A couple of blankets lay on the ground. Whoever they were, they’d have to visit an estate agent after I’d finished today’s makeover.
The cave was about three metres wide and a couple high at the entrance, sloping down two metres towards the back. I lay down at its centre and checked what arcs I’d achieve with the explosive. As the combustion looked for the easiest way out, it would initially go forward, then spread left and right, up and down – a bit like shotgun pellets do so that men in tweed can bring down pheasants and think themselves excellent shots.
Sweat poured down my face, and all my joints were aching as if I had flu. To top it all, I had a stinging lump on my left forearm that I kept scratching through the material. I was tempted to keep lying there and tune right out.
I needed a piss. I didn’t want to lose any more fluid, but it had to be done. I unzipped and sprayed the mud. Dark yellow and stinking; not good. I was still badly dehydrated.
I wanted one row of bags right along the back wall, then another on top of that. I wanted a chain reaction. They needed to be packed tight so they had contact with each other – but not too tight. Compress the mix too much and it won’t detonate.
Crucial turned up with two gunners as the first of the bags were laid. There was so much link dangling round their necks, it probably weighed more than they did. They carried the guns by the handle and their shoulders drooped under the weight.
There was no longer a smile on Crucial’s face, just lots and lots of sweat. He had a coating of white froth round his mouth. I wasn’t the only one in need of fluid. ‘They’ll cover both ways on the approach routes,’ he said, in his high-pitched voice. ‘If they start firing, you get straight back into the valley and leave them to it. That OK? I’ll take over.’
‘What about metal? We need shed-loads.’
He turned away and rattled off a set of instructions in French at the departing gunners. ‘Don’t worry. It’s coming. I’ll be with you. Just sort things out here, man, and I’ll do the rest.’
The air was thick with grunts and groans from the beetles as they humped and sited their heavy loads. I’d arranged a row of eight bags along the bottom, then another of eight on top, and finally one of six. It looked like I was going to be able to pack in another three rows in front.
Fair one. Crucial was right: I should worry about my patch, and let him worry about his.
5
I waited until the last four or five bags had been hauled up the bank and deposited in the cave. There must have been a total of forty or more in the stack by now, enough to bring down the House of Commons. The ANFO boys were busy making another batch for the other side so maybe we had enough to take down Westminster Abbey while we were at it.
I opened the box of HE. That wasn’t what the Chinese were calling it, but it sent a message everyone could understand. The moment the lid was lifted, the pungent smell of marzipan filled the air and made my head swim even more.
British PE4, or the American equivalent C4, was non-toxic and odour-free, but this stuff, churned out by Chinese or Eastern European factories, didn’t piss around: it gave the user the mother of all headaches. It was also vulnerable to shock, and could be detonated if just a stray high-velocity round slammed into it. Even an RPG round detonating within a foot or two would send out enough of a shockwave to kick it off. Not good if you were trying to drop a suicide-bomber and were no good at head shots – but it went bang, and that was all I needed.