Luca found this terrifying, the notion that the great structure of the Expansion was so fragile. Equally terrifying was the realisation of how much knowledge he still had to acquire. ‘And you think the religious outbreak at the Core is one such destabilising grain?’
‘I’m hoping it won’t be,’ Dolo said. ‘But the only way to know is to go there and see.’
‘And stop the grain falling.’
‘And make the right decision,’ Dolo murmured, correcting him.
They left the factory world and passed ever inwards towards the Core, through more veils of stars.
At last they faced a vast wall of light. These were star-birthing clouds. Against the complex, turbulent background Luca could pick out globular clusters, tight knots of stars. Ships sailed silently everywhere, as deep as the eye could see. But from behind the curtain of stars and ships a cherry-red light burned, as if the centre of the Galaxy itself was ablaze.
Teel said, ‘We are already within the Core itself, strictly speaking. Surrounding the Galaxy’s centre is a great reservoir of gas some fifteen hundred light years across – enough to bake a hundred billion stars, crammed into a region smaller than that spanned by the few thousand stars visible to human eyes from Earth. That wall you see is part of the Molecular Ring, a huge belt of gas and dust clouds and star-forming regions and small clusters. The Ring surrounds the centre itself, and the Xeelee concentrations there.’
Dolo said evenly, ‘The Ring is expanding. It is thought that it was thrown off by an explosion in the Core a million years ago. We have no idea what caused it.’
‘How remarkable,’ Luca said. ‘In this dense place, this is the debris of an explosion: a great rolling wave of star birth. And what is that pink light that glows through the clouds?’
For the first time in the days since he had met her Teel looked directly at him. Her blue eyes seemed as wide as Earth’s oceans, and he felt his breath catch. ‘That,’ she said simply, ‘is the Front. By that light people are dying.’
Luca felt a complex frisson of fear and anticipation. All his life he had lived in a human space thousands of light years deep. He could look up into the sky and pick out any star he chose, and know that either humans were there, or they had been there and moved on, leaving the system lifeless and mined out. But now it was different. This slab of sky with its teeming clouds and young stars was not human. Up to now, he had been too concerned with his relationships with Teel and Dolo, and beyond that his duty, to have thought ahead. He realised he had no idea what he might find here at the Core, none at all.
He said reflexively, ‘“A brief life burns brightly.”’
‘Here we have a different slogan,’ murmured Teel. ‘“Death is life.”’
The Spline ship moved on, cautiously approaching the vast clouds of light.
II
The asteroid had an official number, even an uplifting name, provided by a Commissary on distant Earth. But the troopers who rode it just called it the Rock.
‘But then,’ Teel quietly told Luca, ‘they call every asteroid the Rock.’
And from this Rock’s surface, everything was dwarfed by the magnificent sky. They were very close to the Galaxy’s heart now, and the heavens were littered with bright hot beacons which, further out, merged into the clouds of light where they had been born. Beyond that was the curtain of shining molecular clouds that walled off the Galaxy’s true centre – a curtain through which cherry-red light poured unceasingly, a battle glow that had already persisted for centuries.
The three of them, with a Navy guard, were walking on the Rock’s surface in lightweight skinsuits. The asteroid was just a ball of stone some fifty kilometres across, one of a swarm that surrounded a hot blue-white star. The young sun’s low light cast stark shadows from every crater, of which there were many, and from every dimple and dust grain at Luca’s feet. He found himself fascinated by small details – the way the dust you kicked up rose and fell through neat parabolas, and clung to your legs so that it looked as if you had been dipped in black paint, and how some craters were flooded with a much finer blue-white powder that, somehow bound electrostatically, would flow almost like water around your glove.
But it was a difficult environment. His inertial-control boots glued his feet to the dusty rock, but in the asteroid’s microgravity his body had no perceptible weight, and he felt as if he was floating in some invisible fluid, stuck by his feet to this rocky floor – or, if he wasn’t careful about his sense of perspective, he might feel he was walking up a wall, or even hanging from a ceiling. He knew the others, especially Teel, had noticed his lack of orientation, and he was mortified with every clumsy glue-sticky step he took.
Meanwhile, all across the surface of this Rock, by the light of the endless war, soldiers toiled.
The troopers wore military-issue skinsuits, complex outfits replete with nipples and sockets and grimy with rubbed-in asteroid dirt. Some of the suits had been repaired; they had discoloured patches and crude seams welded into their surfaces. These patched-up figures moved through great kicked-up clouds of black dust, while machines clanked and hovered and crawled around them.
Most of the troopers’ heads were crudely shaved, a practicality if you were doomed to wear your skinsuit without a break for days at a time. With grime etched deep into their pores it was impossible to tell how old they were. They looked tired, and yet kept on with their work even so, long past the normal limits of humanity. They were nothing like the steel-eyed warriors Luca had imagined. They looked like experts in nothing but endurance.
It seemed to Luca that what they were basically doing was digging. Many of them used simple shovels, or even their bare hands. They dug trenches and pits and holes, and excavated underground chambers, each trooper, empowered by microgravity, hauling out huge masses of crumpled rock. Luca imagined this scene repeated on a tremendous swarm of these drifting rocky worldlets, soldiers digging endlessly into the dirt, as if they were constructing a single vast trench that enclosed the Galaxy Core itself.
Dolo made a remark about the patched-up suits.
Teel shrugged. ‘Suits are expensive here. Troopers themselves are cheaper.’
Luca said, ‘I don’t understand why they are digging holes in the ground.’
‘To save their lives,’ Teel said.
‘It’s called “riding the Rock”, Novice,’ Dolo said.
When it was prepared, Luca learned, this asteroid would be thrown out of its parent system, and in through the Molecular Ring towards the Xeelee concentrations. The first phase of the journey would be powered, but after that the Rock would fall freely. The troopers, cowering in their holes in the ground, would ‘run silent’, as they called it, operating only the feeblest power sources, making as little noise and vibration as possible. The point was to fool the Xeelee into thinking that this was a harmless piece of debris, and for cover many unoccupied rocks would be hurled in along similar trajectories. At closest approach to a Xeelee emplacement – a ‘Sugar Lump’ – the troopers would burst out of their hides and begin their assault.
‘It sounds a crude tactic, but it works,’ said Dolo.
‘But the Xeelee hit back,’ said Luca.
‘Oh, yes,’ Teel said, ‘the Xeelee hit back. The rocks themselves generally survive. Each time a rock returns we have to dig out the rubble, and build the trenches and shelters again. And bury the dead.’