“I like it,” McPhee hooted.

“Our call to arms,” the concealed man replied. “It has a certain je ne sais quoi , no?”

Stephanie glanced round urgently, trying to pin down the voice. “Call to arms?”

An explosion sounded in the distance, rumbling fast over the quagmires and stagnant pools smothering Catmos Vale. A mine had detonated under the leading jeep, punching the front of the chassis into the air. It crashed down, spilling serjeants across the road. Blue white smoke billowed out from the crater in the concrete. Lumps of debris rained down. The other jeeps braked sharply. Serjeants froze all along the front line, crouching down.

The piper finished, and bowed solemnly at his enemies. There was a dull, potent thock , loud enough to quiver Stephanie’s gullet. Then another. A whole barrage started up, the individual thumps merging into a single soundwave. Tina squealed in fright.

“Ho shit,” Cochrane growled. “Those are mortars.”

“Well done,” said the woman. “Now keep down.”

It was, the Liberation’s coordinating AI acknowledged, a classic ambush, and executed perfectly. The jeeps were confined to one of the narrowest strips of land in the valley, unable to veer away. A sleet of mortar shells fell upon them, ranged precisely. High explosives detonated in a near constant bombardment, pulverizing the stalled vehicles, and shredding the serjeants riding them. Smoke, flame, and spumes of superfine mud belched out, obliterating the carnage from view.

The AI could do absolutely nothing to prevent it. Radar pulses from the SD sensor satellites swept the length of the valley, but they required several seconds to acquire lock on. The first bombardment lasted for ninety seconds, then the mortar operators switched to airburst shells, and changed elevation. Dense black clouds burst open above the line of serjeants as they toiled desperately through the quagmire. Broad circles of mud erupted into cyclones of beige foam as the shrapnel slashed down, obliterating the struggling figures.

Only then did the SD radars finish backtracking the mortar trajectories. The AI launched its counterstrike. Incandescent scarlet beams stabbed down in retaliation, vaporising the possessed and their weapons in micro-seconds. Over a dozen patches of dry land were targeted. Supersonic torrents of steam flared out from the base of each impact. When they gusted away, the mortar sites had been reduced to shallow craters of hardbaked clay, their centres still radiant. They chittered softly as the drizzle fell, prizing open millions of tiny heat stress fractures.

The empty silence returned. Swirls of smoke drifted over the valley floor, dissipating slowly to reveal the burning wrecks of the jeeps. Spread out across the quagmire, the ruptured bodies of the serjeants were gradually claimed by the mud’s tireless embrace. Within an hour, there would be little left to hint at the conflict.

Stephanie found herself clawing into the soft soil, every muscle locked solid to resist the laser pulse. It never came. She let out a wretched sob, surrendering to the severe shaking that claimed her limbs. Two of the ferrang packs crept towards Stephanie and her friends. They dissolved into a pair of human figures dressed in dark grey and green combat fatigues. Annette Ekelund and Soi Hon looked down at them with anger and contempt.

“You idiots could have got us blown back into the beyond by blundering about like that,” Annette said. “What if dear Ralph considered you to be part of this operation? They would have zeroed this patch of ground for sure.”

Cochrane lifted his head, mud dribbling down his face to saturate his wild beard. His dead reefer was squashed against his lips. He spat it out. “Well like fuck me gently with a chainsaw, sister. I’m real sorry to cause you any inconvenience.”

Not even Lalonde’s oppressive climate prepared Ralph for the awesome humidity when he stepped out of the Royal Marine hypersonic transport plane. It prickled his skin at the same time as it siphoned away vital body energies. Just breathing it in was exhausting.

With the last strands of cloud at last gusting out to sea, the tropical sun could finally exert its full strength against poor malaised Mortonridge. Thousands of square kilometres of mud began to effervesce, thickening the air with hot cloying vapour. Looking round from the top of the airstair, Ralph could see long ribbons of tenuous white cloud flowing with oily tenacity around the hummocks and foothills of the broad valley. More mist was percolating up from the highlands on either side, with long snow-white streamers spilling out through clefts in the valley walls to slither down the slope like slow-motion waterfalls.

He sniffed at the air. Threaded through the blanket of clean moisture were the traces of corruption. The peninsula’s dead biomass was starting to rot and ferment. In another few days the stench would be formidable, and no doubt extremely unhealthy. One more factor to consider. Though it was a long way down on the priority list.

Ralph hurried down the aluminium stairs, with Brigadier Palmer and Cathal just behind him. For once there was no Marine detail waiting to guard him. They’d landed outside the staging camp established in the mouth of Catmos Vale. Hundreds of programmable silicon igloos had sprung up in rows like giant powder-blue mushrooms, a miniature recreation of Fort Forward. The only people here were serjeants, occupation troops, and medical case de-possessed. Plus a handful of rover reporters; all officially authorized Liberation correspondents, with a pair of Royal Marine information officers shepherding them.

When he looked up the valley, the loose smears of mist blurred into a single featureless white sheet carpeting the floor. His enhanced retinas zoomed in on the only visible feature, the slim greyish spire of Ketton’s church rising out of the mist. Just by looking at it, Ralph could sense the possessed mustering in the town, a replay of the gentle mental pressure they’d all known in the days of the red cloud.

“She’s here,” he murmured. “The Ekelund woman. She’s in Ketton.”

“Are you sure?” Cathal asked.

“I can feel her, just like before. In any case, she’s one of their leaders, and this bunch are well organized.” Cathal gave the distant spire a dubious glance.

The camp’s commander, Colonel Anton Longhurst, was waiting at the bottom of the airstairs. He saluted Ralph. “Welcome to Catmos Vale, sir.”

“Thank you, Colonel. Looks like you’ve got yourself an interesting command here.”

“Yes, sir. I’ll show you round. That’s after . . .” he indicated the reporters.

“Ah yes.” Ralph kept his ire under control. They’d probably all be using audio discrimination programs, the bastards never missed a trick.

The information officers signalled the all clear, and the rover reporters closed in. “General Hiltch, Hugh Rosler with DataAxis; can you please tell us why the front line has stalled?”

Ralph gave a wan, knowing smile to the plain-looking man in a check shirt and sleeveless jacket who’d asked the question. An in-your-face transmission of the cordial public persona he’d developed and deployed for the last few weeks. “Oh come on, guys. We’re consolidating the ground we’ve already recovered. There’s a lot more to the Liberation than just rushing forward at breakneck pace. We have to be sure, and I mean absolutely sure, that none of the possessed has managed to sneak through. Don’t forget, it was just one possessed who got into Mortonridge that was responsible for this in the first place. You don’t want a repeat of that, do you?”

“General, Tim Beard, Collins; is it true the serjeants simply can’t hack it anymore now that the possessed have started to put up real resistance?”

“No, it is categorically not true. And if you show me the person who said that, I’ll give them a personal and private demonstration of my contempt for such a remark. I flew in here today, and you people drove in from the coast.” He waved a hand back at the mud-covered land. “They walked the whole way from the beaches, engaged in tens of thousands of separate combat incidents. And on the way they’ve rescued nearly three hundred thousand people from possession. Now does that really sound as though they can’t hack it to you, because it doesn’t to me.”