‘Neat trick,’ Cormac commented.
‘One of my favourites,’ Arach replied. ‘Though my power reserve is much smaller now.’
Cormac eyed the drone: it looked somehow even more sinister now it appeared to be all legs. ‘Will it survive the CTD blast?’ He pointed up.
‘So long as the roof doesn’t collapse, and maybe even then,’ Arach replied.
Cormac nodded. ‘Let’s keep moving, shall we?’
They crawled through crevices where sometimes Cormac found it necessary to turn his head sideways to manage to worm through. It was exhausting work, and during the first few hours Cormac stayed thoroughly aware of time passing. Reaching an area in which it again became possible to stand almost upright, he called a halt and they broke out supplies. He eyed the dracomen, who opened packets of what looked like raw meat and gobbled it down. He, Blegg, and the human Sparkind enjoyed more standard fare, and Cormac never knew coffee to taste so good.
‘Time is passing,’ Blegg noted.
‘It is,’ Cormac replied. ‘At our present rate of travel we should reach the pool Scar’s people detected—not long before the estimated breakthrough time of our friends above. We definitely need to be underwater by the time that autogun runs out.’
‘Yes, we certainly do.’
Cormac glanced at him. ‘Not feeling so fatalistic now?’
Blegg started to say something, then decided against it. ‘We should be moving on,’ he finally replied.
Cormac was worming through another particularly cramped stretch when he heard the distant sound of the autogun firing. Checking, it surprised him to see how much time had passed, and realized Blegg’s estimate not to have been far off—it took their attackers ten hours and fifteen minutes to break through. Cormac’s estimate of their own progress had not been so good. Even the dracomen were growing weary, and the pools not yet in sight.
‘Thirty yards to go,’ came Arach’s call from ahead.
‘Move!’ Cormac bellowed. ‘We need to get through here fast!’
Here, as soon as the CTD blew, they would be fried—the heat and energy of its blast funnelled down to them through the fissure. They all began moving a lot faster and with less regard for minor injuries. Cormac listened to the whoosh and chatter of the gun — waiting for that moment when it ceased. Abruptly Scar and Blegg, just ahead of him, were rising up onto hands and knees and progressing faster. He heard a splash, and yet another splash. As he too rose up from his belly into a crouch, Scar passed the ring end of a line back to him. He attached it to his winder—too easy to get lost under water that might quickly turn murky. Through his gridlink he raised the helmet and closed the visor of his envirosuit, and followed the others down into water lanced through with their envirosuit light beams.
About them the pool lay deep and wide, but soon the two dracomen ahead led them into a narrow intestinal pipe corkscrewing through the rock. Twice they surfaced in travertine sumps, and on a third occasion a glare of light passing through the water ignited the sump with rainbow colours.
‘The autogun just ran out,’ one of the human Sparkind commented.
They waited, then suddenly the water itself surged upwards, forcing them towards the ceiling.
Now, thought Cormac, only Arach’s little present stands between them and us. He reckoned those Jain-constructed biomechs could move faster down here than he and his fellows, though they might have to burrow again if there had been intervening rock falls.
‘What explosives do we have remaining?’ he asked.
‘Grenades, eight planar mines and one more CTD,’ replied one of the Golem.
‘Let’s hope we won’t need the CTD,’ he said. ‘Position the mines where you deem appropriate—proximity detonation.’ He added unnecessarily, ‘Let’s keep moving,’ as the water level descended.
Within an hour they left the pipe and ascended a gently upward-sloping fissure. The temperature slowly began to rise, which indicated this cave system opened up somewhere to the surface. Then abruptly the upward slope ended against a wall of stone. Reaching this and directing his envirosuit light upwards, Cormac discerned another fissure climbing up into darkness.
‘How many mines left?’
‘Four.’
‘Okay, you Golem take the lead. Position two of the mines up in the fissure and when you reach a suitable point, run lines down.’
As the Golem headed rapidly up through the fissure Cormac turned to the others. ‘All of you, take a rest.’ He himself felt utterly drained, partly a result of the stimulants he had used while fighting through the jungle above. He did not want to use any more of them until it became absolutely necessary.
Lines snaked down to them twenty minutes later, just as a dull boom echoed through the cave system. The biomechanism must now have entered the underwater cave system. They hooked up their winders and ascended to where the Golem had secured themselves. The fissure here turned to follow an angle of thirty degrees from the horizontal still ascending.
With disheartening regularity over the next few hours the mines they had planted detonated behind them. Twice they needed to stop and take seismic readings to find some available course ahead. Once it became necessary to use one of their remaining mines, then some of the grenades, to blast a way through into another tunnel. While in there another dull boom resounded from behind. Checking some instrument one of the Golem told them, ‘That was the last mine we planted.’ Cormac felt he really did not need that—he could count. Then, manoeuvring through one sharply curving tunnel, he noticed a steady climb in temperature. Further along he found it necessary to close up his envirosuit. Next, reddish light began to impinge.
‘We have a problem,’ came a yell from up front.
Cormac quickly moved up past the others.
‘The seismic scanner missed this,’ explained one of the dracomen, almost guiltily.
The tunnel opened out onto a tilted slab that ran partly along one side of what appeared to be the empty chimney of a volcano. High above, the sky was visible like a bloodshot eye. Cormac moved to the rim of the slab and peered over.
Something down there?
He caught just a hint of a metallic gleam, but immediately it faded, then the rest of the dracomen and the Sparkind surged out of the fissure, unstrapping their weapons and turning to face back the way they had come. Arach reared up, standing only on his four back legs, the four front ones spread in threat, shimmering along their inner edges as chainglass blades extruded. From the fissure came a sound as of a swarm of iron snakes ascending towards them.
‘Yeah, we have a problem,’ Cormac agreed wearily.
Out towards the cold living world there were fewer of the alien ships, and those that were there would not be able to build up sufficient speed to catch up with the Centurions. They could, however, intercept, since the Centurion’s target was an obvious one. Also, some of the alien ships had followed the same sling-shot solar orbit as the Centurions, and were not far behind, though with their number depleted by Haruspex’s use of a gravtech weapon as they first sped down towards the sun.
‘So, what’s the plan?’ asked Coriolanus. The Centurion’s AI loaded its question with just the right level of irony. Jack reckoned it must have been practising. Scanning ahead, he now estimated the moon to be not much larger than Mars’s moon Phobos.
‘You and Haruspex go in ahead of me,’ he said. ‘Haruspex takes the left flank, you take the right flank. We’ll strafe the surface with masers, follow up with CTDs. On our second pass we’ll use rail-gun missiles to penetrate deep, followed by telefactors to check for—’
‘Ho ho,’ interrupted Haruspex.
‘Okay, plan B,’ said Jack. ‘Let’s blast the fuck out of that moon.’
‘Oops, contacts rounding the planet,’ warned Coriolanus.
Bacilliforms swarmed into view, and behind them, like their herders, came two ammonite spiral ships. After observing these, Jack now noticed some of the lens-shaped vessels on an intercept course far over to one side. It would be nice to be able to use chameleonware at this point, but all three Centurions had sustained too much damage for that to be effective. Jack instead fired off a near-c fusillade from his rail-gun to intercept them. The other two ships likewise let loose with their rail-guns, whereupon Haruspex complemented this with five seeker missiles, which slowly dragged away from the three Centurions.