The man never ceased to surprise her. Leaving him to his domestic duties, she went into the next room. 'Fyn-Mah! we've found one — an infant.'

The perquisitor came running. 'Where?'

'Flangers is feeding it.' Irisis found a small, undamaged cage which she padded with handfuls of straw.

Fyn-Mah was standing over Flangers. 'Come on, soldier!'

'One feed will make a big difference to its chances,' said Flangers.

'The time could make a big difference to our chances. Oh, all right, but only a few minutes. Where's Muss?'

'He just disappeared.'

Fyn-Mah did not look surprised. 'He's got other business to attend to.' With an anxious glance at the door, she hurried back to the adjoining room to resume her search.

Irisis sat the cage next to the dead mother. It made her uncomfortable to see Flangers feeding the creature, but it fascinated her too. What an unusual man he was. 'Did you grow up on a farm?'

No, I lived all my life in Thurkad, until I signed up.'

'Then how did you know …?' I'm just interested in things. Do you know —’

Fyn-Mah came flying through the door, followed by the soldiers. 'Come on!' She hurtled out.

Flangers slipped the little creature into his pocket. Irisis took the cage. 'What's the matter?'

Fyn-Mah was running on tiptoes. 'There are more lyrinx on the way.'

'How do you know?' Irisis panted. 'Where are they?'

'Shut up and run!'

She led the way, followed by Irisis and Flangers, then the soldiers. The young captain looked very uncomfortable to be bringing up the rear. They raced down the corridor, sticky tar rasping underfoot, turned the corner and saw half a dozen lyrinx ahead. Fyn-Mah spun on one slender foot and darted to her right, into a smaller, darker tunnel.

'I'm not sure this is the right way,' said Irisis.

Fyn-Mah glanced at the swinging cage as Irisis pounded beside her. 'Where is it?'

'Flangers has it in his pocket.' He was in the middle of the line of soldiers.

'Flangers! Up with me. Myrum, go back with Irisis.'

Flangers made his way up. Myrum, a stumpy chunk of scarred muscle, moved back. Irisis studied him as he joined her. Long black hair curtained a high, bald dome. The old soldier was missing one ear, most of his teeth and the tip of his nose, yet she had not seen him without a smile.

'What're you so happy about?' she said.

'Being alive,' Myrum said with zest.

'Enjoy it while it lasts.'

I do — every minute.'

'Lead the way, Flangers,' said Fyn-Mah. 'And take good care of the little beast.'

He flashed her a grin, sketching a salute with his left hand, and moved ahead. Fyn-Mah came next and Irisis just behind, with a short gap to Myrum, the other four soldiers and the captain at the rear.

Fyn-Mah s eyes were fixed on Flangers's scored buttocks, which were round, tight and moved beautifully as he ran. Irisis found her own eyes drawn to the sight, and once there, it was hard to look anywhere else. She could not help wondering what it would be like to lie with him- She'd not slept with a soldier before. Her lovers had been men from the manufactory. She wondered if Fyn-Mah was drawn to him. Impossible to tell; the perquisitor never gave anything away.

Fyn-Mah was fleet, considering her small stature. Irisis's long legs could barely keep up with her. The soldiers were also labouring, but they wore chest armour and carried heavy packs. Behind them a sword clanged on something hard. A man cried out, then there was a thud, barely audible over the sound of their pounding feet.

One down, Irisis thought. Probably the captain who'd insisted on his orders in writing — fat lot of good it had done him. Why was this mission so important? Was this little creature what Fyn-Mah had hoped to find, or had she been looking for something else when she went off the other way? It was unlikely Irisis would ever find out. All quisitors, from lowly probers to exalted scrutators, were close-mouthed, but Perquisitor Fyn-Mah made an art form of it. And she had good reason not to trust Irisis.

Irisis caught a whiff of smoke — the throat-gripping reek of burning tar. When the node-drainer was destroyed, the incandescent blast would have liquefied rock.

A scream and there was one less pair of pounding boots behind her. Attacking from the rear, out of the dark, suited the lyrinx perfectly. There was nothing to be done about it. They had no spears to throw, no crossbows to fire, and they dared not stop to make a stand. The tunnel was too narrow. All they could do was run.

The third man fell without a sound, the sudden lack of footsteps all they knew of his passing. 'That's three we've lost,' Irisis gasped. 'Slow down.'

A grunted cry. Four!

Fyn-Mah threw a glance over her shoulder. Her iron control was slipping; Irisis could see the panic in her eyes. 'We can't afford to.'

'We can't afford to lose anyone else,' said Irisis.

Fyn-Mah called out to Flangers, who wore neither pack nor armour and had heen drawing ahead, despite his injury. 'Slow down, soldier.'

The two remaining soldiers closed the gap. Myrum was still grinning, though it was more forced. Young Ivar's eyes were ablaze with terror.

Myrum clapped him on the shoulder. 'Do your duty like a man, lad.'

Ivar nodded as he ran, his head jerking like a puppet. Myrum ushered him ahead, taking the last place in the line.

But he's not a man, thought Irisis. He's just a boy. What kind of monsters are we, that we demand such sacrifices of children? Yet, selfishly, she was glad that the lad was between her and the enemy. Those few extra moments of life were precious.

I'm sorry, Ivar. Myrum is going to be next, and then you. The old fellow will put up one hell of a struggle, maybe even kill one of the enemy, if he's lucky, but the next will get him. That's all his life was for. And then, just you, Ivar. You won't last a minute. Who'll mourn your insignificant life and brutal death? We won't, because we'll be following you. Everything we've done will have been for nothing.

'Where are you going?' panted Irisis. Fyn-Mah had called directions to Flangers whenever they came to a junction, but apart from that she'd said nothing at all.

'I left a finder in the air-floater. I'm tracking it back as best I can.'

Irisis had never heard of a finder. How could it show Fyn-Mah the way back through this labyrinth?

'Fyn-Mah!' she hissed. 'Why don't you blast them with another of those crystals?'

The perquisitor turned as she ran and Irisis saw torment in her eyes. 'I can't.'

'You don't have any more crystals?'

A long pause. I have one,' she said softly. 'I'm saving it for an emergency.

'And this isn't?' Irisis said in a low voice. You could have saved those soldiers and you chose not to? You callous bitch!'

The whole left side of Fyn-Mah's race quivered. 'I have my orders, Crafter. If I use it now I won't have it later, and believe me, before we get out of here we're going to need it.'

Irisis lowered her voice. 'So the soldiers are expendable?'

'I don't like it, but yes, they are.'

'And me? Is that what I'm here for too?'

'You know it isn't. But, since you've asked, I'll sacrifice you, too, if I have to. What are any of our lives, before the fate of humanity?'