After every landing. Along with many insects. Too small to evade the decontaminant detectors. But they flounder soon enough.'

'This one looks very healthy.' The Doctor whispered to it, 'I wouldn't mind popping you under the microscope, old thing. If only to -' He broke off as a set of facts slotted together in his mind. Flies. The heat in the Chelonian base. The preservative. 'Seskwa. Stop this vehicle. Now.'

'What? Why?'

The Doctor opened his hands and let the fly go. 'Just do it. I'm having another one of my unfounded fears.'

'You talk nonsense. We shall continue.'

Another thought struck the Doctor. 'Wait a moment. How did it get in here?

We're sealed in.'

'It is not important,' said Seskwa, keeping his eyes on the way ahead.

The Doctor's large, sensitive nose sniffed. He watched as the fly zipped beneath Seskwa's sh.e.l.l at the upper neck, where the thick leathery tissue appeared purple and freshly scarred, and gulped. Suddenly he felt very hot.

'Ah. Seskwa, I think you've got a problem. If we stop here now there might still be time.'

'We shall continue.'

'I thought you were looking rather the worse for wear,' the Doctor went on.

'Stop and we can talk things over.'

Seskwa turned abruptly, bringing his fierce features inches from the Doctor's. 'You are needed,' he said hoa.r.s.ely. 'You are special. Your death will satisfy us.' He nodded to the forward screen. The vehicle was approaching a sheer drop. Automatic alarms chittered, sent warnings flashing. The drop was hazardous, the pit beyond many hundreds of feet deep.

The Doctor lunged for the tank's manual controls. A moment later, so did Seskwa. And he was by far the stronger.

The tank careered crazily from side to side, the ma.s.sive rollers on its underside sending showers of grey sludge in all directions as it lurched across a muddy bank. Then it lost its grip on the ground, toppled over the edge of the drop, and plummeted into the darkness.

There was silence for a few seconds.

Then there was a colossal explosion, throwing out a golden glow for miles around.

Chapter Six - Violence.

An attendant's voice crackled from Jafrid's earclip. 'Your steam tank is ready, General. The temperature is set at four hundred zinods.'

Jafrid stretched his four limbs to their fullest limits, feeling the hydraulic units inside tense and relax in sympathy. 'Thank you. Just what's needed.

Joints are aching.' He lowered his webbing and shuffled out of it, his plastron sagging slightly as he padded towards the door that led from the control room. He pa.s.sed the Environments Officer and said, 'Tuzelid, keep me informed, I'll be in the hot-tub. Has that Doctor made it over yet?'

'Not yet, sir.' He rubbed the side of his chin and said, 'I'm so glad everything's calmed down again, sir.' He pointed to his screens. All the displays were calm and comparatively empty. 'That's the way I like to see them.'

Jafrid grunted his agreement. A small flashing green dot on one panel caught his attention. 'What's that, then?'

Tuzelid followed his gaze and his posture changed, his rear end lifting in the natural Chelonian display of shock. 'Faf! Sir, that's the First Pilot's life trace!'

Jafrid had never fully understood the machinery and the jargon of the control room. 'What does that mean?'

Tuzelid hunched over his controls and his front feet moved urgently over several of the sense-panels. 'Seskwa. Respond.' There was no reply from the speaker grille above his head, not even a wash of static.

'Has something gone wrong?' Jafrid felt an unpleasant sliding sensation.

His world was unbalancing again. 'Patch in to the tank.'

Tuzelid did some more fiddling with his instruments, and the control room's big screen lost its aerial view of the war zone and went blank. 'No image.'

'Use the satellite, then,' urged Jafrid. 'It's probably only a technical fault.'

As if to contradict him the screen fizzed and sprung back to life with an enhanced satellite image. It was night, and the contours of the zone were picked out in a dull purple. The satellite's roving eye, as directed by Tuzelid, aimed for the last known location of the tank, its field zooming closer and closer in until it was strained to its limits. At the exact centre of the screen was a pulsing green aura. Tuzelid enhanced the image, narrowing the satellite's aperture to filter out the planet's own dingy shine.

The aura turned a violent red, and data flowed at the bottom of the screen.

'What is that?' asked Jafrid.

'It's Seskwa's vehicle, sir,' said Tuzelid. 'The energy release contains atrizum and amytol.' These were deposits stored in the fuel tanks of all Chelonian land craft, which became extremely volatile if ignited.

Jafrid's heart sank. Then his alert eyes caught a movement, a flicker not far from the explosion. 'What moves there? Enhance the image, quickly now.'

A grid filled itself in over the image, and the square containing the movement zoomed out. Image magnifiers knocked out as much distortion as they could, and a still picture was formed. It showed an upright, humanoid shape, a long covering wrapped about its top half many times.

The Doctor!

Jafrid's throat dried. 'Seskwa, you were right. Why did I not heed your warning?' Distantly he was aware of a collective intake of breath among the control room officers, and abruptly the atmosphere became even more stifling.

'Orders, General?' asked Tuzelid. His tone was forthright, martial.

Jafrid tried hard to cover his hurt. That Dolne, his old friend, could have sanctioned such a cowardly deceit was almost too much for him to believe.

But the old ways were also strong in him, and he felt a surge of hatred for all humans. 'Cancel my steaming session. Ready all launchers, Guzrats included. Strategy: full strike, maximum sweep, no mercy, no prisoners.

Ground forces are to act as reinforcements as and when. Bring all satellite guidance on line.' The control room hurried to obey him, and there was a general flurry of activity.

Such was Jafrid's anger - directed mostly at himself for his foolishness in believing the words of the Doctor - he was almost oblivious to it. Slowly he went back to his webbing and hauled himself in.

Cadinot was turning around to make his selection from the tray of fancy cakes being offered round by Hammerschmidt when the door of the Strat Room slid open. Dolne entered. 'Ah,' he said, 'Admiral, I didn't expect you to come back so . . .'

The words dried up as he saw what Dolne carried in one hand. It was the head of Viddeas.

Cadinot stood, knocking the tray of cakes out of Hammerschmidt's hand.

'My G.o.d! Sir, what happened?'

Dolne fixed him with a horribly hard stare. 'Sit down, Cadinot. And don't lose your head.' He seemed to realize what he had said. 'I mean, keep calm.' There was a reserve and formality to him that was unusual, and his posture was stiffened. 'We must all keep our wits if we are to survive.' The fact that he was still in his pyjamas gave the scene an added air of unreality.

'But what happened?' Cadinot spluttered.

Dolne lifted the head. Cadinot tried not to look at the ghastly staring eyes, the greenish-tinged skin and the gore trailing from the severed neck. 'You don't have to look too closely. He was killed in a frenzied attack. Killed with this.' Dolne lifted his other hand, showing a blood-soaked blade set in a jewel-encrusted hilt. 'The gift of our good friend General Jafrid.' Dolne set the head down next to the fallen cakes and straightened himself. 'By this act, the Chelonians have declared open war.'

There was a general murmur of agreement. Cadinot was puzzled. 'But who killed him? Who did that?'

'The Chelonians, obviously', said Dolne.

'But there are none here in the post,' said Cadinot. He was conscious of speaking for all the Strat Room staff. 'We handed all the prisoners back.'

Dolne stalked over. He held the dagger out before him, and its gems seemed to sparkle against his oddly lifeless eyes. 'Are you a traitor, Cadinot?'

'No, sir.'

'Then return to your position and align the satellite systems.' Dolne raised his voice. 'Strategy: full strike, maximum sweep. Aim: total destruction of enemy force. Ground troops will be deployed to reinforce the strike as and when. Begin!'

Harmock was looking out over the city. The giant floodlights had been switched on, criss-crossing the night sky with bright yellow beams, illuminating the emptying walkways. Work was over for them, he thought ruefully.

But he could not rest. The following hours were crucial.

After the unscheduled debate with the dog, Harmock was making sure he would not be caught unprepared again, and was going through a number of stock responses with Liris. She had worked out what questions MNN were most likely to ask, and was grooming his replies.

'... and there will be no quarter given,' he was saying, 'in this, our most difficult hour. No, "our" and "hour", sounds wrong, d.a.m.n.'

'Our hour of greatest difficulty?' Liris suggested.

'Don't like "our hour" at all. Sounds odd.' He paced around his desk. 'And "difficult" isn't dramatic enough.

How about "The darkest hour in all this planet's days"?' Liris considered. '

"Days" is literal, "hour" figurative.'

'You're right. Then, "On this, perhaps the darkest day in our history". No, too negative. We must give people the sense that at least something is better than it's ever been.'

The study door swished open, and Galatea entered, bringing with her his opponent and entourage. This small group, Harmock noted with a groan, included Stokes.

The man was a very good artist, but so difficult to deal with.

'Premier,' said Galatea. 'I bring you an audience with your opponent.'

Harmock a.s.sumed his smuggest expression. 'Ah. So, the dog himself is here.' He walked across to K9 and nodded a greeting. 'Welcome. Take a good sniff around. It's the only time you'll ever see inside the place so you'd better make the most of it.'

K9 surveyed the room's antique furnishings and his head drooped. 'When I am installed as premier I will dispense with unnecessary trappings such as these.'

'Will you now?' said Harmock, in a tone calculated to show he did not feel at all threatened. He extended a hand to the female. 'And you would be Romana. Charmed.'

'Good evening, Mr Harmock,' she said. Her tone was clear and polite.

Wouldn't last long in politics. 'I believe there's a suite being made ready to receive us.' She seemed eager to get away.

'Indeed. Galatea?'

Galatea indicated the door. 'Shall we move along?'

Romana made to follow, but K9 wasn't moving. He came closer to Harmock and said crispy, 'I have studied your manifesto. It is inaccurate on seventeen verifiable points. I will now list these. One: the present situation on Barclow cannot yet be cla.s.sified as a major incident; two: economic downturn in the long run has been the direct consequence of your own fiscal policy; three: there is -'

'It can wait, K9,' said Romana.

'Yes,' Harmock taunted. 'You'd better give your batteries time to recharge.'

K9 gave an electronic growl and backed away. Interestingly, he seemed to obey Romana without question. They followed Galatea from the room.

Stokes stepped forward. 'Mr Harmock, I have an urgent request.'

'I wondered when you were going to open your big mouth,' said Harmock.

'Well?'

Stokes indicated one of the antique chairs. 'May I? It's been an arduous journey.' Harmock waved for him to sit down. 'Now, I don't want to appear rude or ungrateful. You Metralubit people have given your generosity and hospitality freely, in a way that quite puts to shame those who consider the universe essentially hostile. But I am a wanderer. As a foreign citizen, and a civilian at that, I would like to take the first available flight out of the system. Would you please arrange it? I shall await notification in my quarters.' He stood up. 'Thank you again for your welcome.' He headed for the door.

'Stokes,' called Harmock.