'What expedition?'

'The expedition your friend Lucas Corso recently sent out towards the coordinates associated with the Mos Hadroch, of course, Dakota.'

She nodded mutely, and realized she had no idea just how much time had passed since the red giant had turned nova. It might have been days, or weeks, or much more.

'I don't know what it is you want, Trader, but there are a thousand reasons why I shouldn't listen to anything you have to say.'

'And yet here you are.'

I didn't ask to come here, damn you. 'The last time I saw you was on Morgan's World. You already knew about the Mos Hadroch, didn't you?'

'In this I must confess my guilt,' Trader replied smoothly.

'You could have just told me, and then I never would have needed to go out there.'

'But I had little more than a name at that time, Dakota. You found out more than I ever did when I myself visited the swarm long ago. You even managed to find a possible location.'

Dakota felt her hands twitch with barely suppressed anger. 'If I could, I'd kill you, Trader. I'd…'

Her heart was hammering, and she felt on the verge of a panic attack. Too much was happening too soon.

She slumped down on the slick black glass extending underfoot, and listened to the wet slap of water against the platform's edge. 'Why here?' she asked, looking briefly around. 'I mean, what is this place?'

'This world?' Trader turned slowly within his sphere of water, glancing from side to side. 'Its occupants have long since passed on, as you may have guessed. There was a time when the civilization that built these towers strode amid the stars. They had an empire of a kind that stretched across thousands of light-years. Their name for themselves might be loosely translated as "Meridians".'

'So what happened to them?'

Trader's manipulators wriggled under his body. 'They never discovered a Maker cache until it was much too late and their culture had become terminally fragmented. Before that, they learned the secret of exceptionally long life and journeyed aboard ships that crawled between the stars at sublight speeds. One branch of the species became aquatic, while the rest remained air-breathers; the reasons why remain unknown. These towers are emblematic of happier times, when the two sides coexisted relatively peacefully, but eventually they tore themselves apart. They could not destroy stars as effectively as you or I might, but they certainly had the means to shatter worlds. If they had survived to face the Shoal Hegemony, they would have presented us with a formidable challenge.'

'So does that have anything to do with why you chose this place?'

'They left behind weapons of the most remarkable power. Weapons that we will need, Miss Merrick, when we begin our journey.'

Dakota stared up at the alien. '"Journey"?'

'First, my dear Dakota, let me recount to you the full tale of the origin of the Mos Hadroch, as far as it is known. It is said to have been created by a species who were forerunners to the Magi, and who saw several of their own worlds destroyed in the early centuries of the nova war that set the Greater Magellanic Cloud ablaze. This vanished race developed the Mos Hadroch as a means to counter the dangers inherent within the Maker caches, but were themselves destroyed before it could be implemented. The Mos Hadroch itself vanished for ever and, for lack of evidence that it ever existed, it became little more than a phantasm, a fable that gained credence through the simple accumulation of age.'

Beyond Trader, Dakota saw dark shapes with wide ragged fins passing slowly by the tower, bioluminescent algae making their skin glow with sinuous patterns of green and yellow.

'But you thought it was real enough to go after the Maker swarm yourself,' she said.

'Before you departed, I told you of my own journey to the Maker. Although ultimately disastrous, it was not entirely a failure. I came away with the knowledge that the Mos Hadroch was of paramount importance to the swarm. After the Maker turned on my fleets, I remained locked in time-stopped stasis for decades until rescuers found me cast adrift in a cloud of wreckage. All I retained for my efforts was that single sliver of knowledge, that somewhere out there existed a weapon that might be used to prevent the nova wars the swarms are programmed to provoke with their caches. But its location has remained elusive – until now.'

'There must be a reason why we're here talking, and you haven't just gone to get it for yourself.'

'Precisely, Miss Merrick! And in that simple statement lies the proof of your intellect.' The alien drifted a little closer. 'You see, it is one thing to have a weapon, but another to know how to pull the trigger.'

Dakota cocked her head. 'I don't understand.'

'Precisely how would you suggest the Mos Hadroch is activated and implemented?'

Dakota stared at him, mystified. 'I couldn't begin to guess until we actually find the damn thing, whatever it is.'

'Indeed,' Trader was saying. 'Beyond a name, you do not even know what it is we are looking for. You know that it has a location, and your own people have discovered that some connection exists between the race that created it and an isolated Atn clade. But you do not know its dimensions, its size, or whether it even has a material shape.'

'But if all you yourself managed to find out is its name, then you're no better off than we are.'

Trader's manipulators wriggled suddenly with what Dakota suspected might be delight. 'On the contrary, the means of operating the Mos Hadroch has been available to me for a very long time. I acquired that knowledge long ago, on a journey to the Magellanic Clouds. A most sorrowful place it is, too: a graveyard of stars, one might say. There is life there, though sparse, living amongst the ruins of dead empires whose descendants can barely perceive the heights to which they once aspired. How ironic that the weapon I travelled so far to find should turn out to be so close to our own territory.'

'You mentioned something about a "journey". But a journey to where?'

'Why, to the heart of the Emissary empire, of course. In order to implement the Mos Hadroch in the way for which it was designed, we must penetrate the Maker cache from which they have derived the majority of their power.'

This has to be one of his tricks, she decided. 'You're fucking kidding me.'

'An amusing conceit, is it not? You must excuse my lack of transparency concerning the method of its activation, but we find ourselves in a situation where each of us may gain from the other. You must believe me, Dakota, when I tell you the Mos Hadroch must be taken to a particular cache before it can be deployed. It then exploits what one might call certain weaknesses in the design of the caches in order to achieve its full effect.'

Beyond the tower, the sun was sinking towards the horizon. Dakota's buttocks felt numb and sore from squatting on the platform. 'This just sounds like more bullshit, Trader,' she told the alien bluntly.

'You are free to doubt my words, as you are free to fly off and never encounter me again.'

Trader's yacht pinged her with a request to pass on data. She accepted it, but not without aggressively filtering it first to make sure she wouldn't encounter any nasty surprises before accessing it.

She stared at him after she had finished studying the data contained. 'You're serious? That's what it can do?'

'Impressive, yes?'

'If it's true. Look, it's what you're nottelling me that worries me. Let's say, for the sake of argument, we get hold of this… this thing and fly it into Emissary territory. I've seen one of their godkillers in action, and I don't have any problem believing they'd wipe us out long before we got anywhere near one of their caches, even if we had a fleet of ships.'