'By whom?'

'Acting Scrutator Jal-Nish Hlar. This is his air-floater.'

'My orders come from Scrutator Xervish Flydd, the com-mander-in-chief of all the forces here.' Fyn-Mah showed him a parchment which contained the scrutator's seal.

The captain gulped, nodded and gave the word to the pilot. Inouye slipped an open helm of crystals and wires over her head, took hold of the controller and screwed up her face as she sought for a distant, usable field. The rotor began to spin. The soldiers cast off the tethers and the air-floater rose out of the grass.

'Stay low,' said Fyn-Mah, checking an instrument concealed in her hand. 'Head that way, keeping just above the enemy's catapult height.' She held out her arm, directing the pilot.

The air-floater rotored gently towards the northern wall of Snizort, crossing over a number of smaller tar seeps where the hard resource had been mined down in benched cones, then a valley that had once been full of the same material. Now only black patches remained, some still smoking, for the lyrinx had fired the tar runs at the beginning of the battle. They saw no sign of the enemy.

'You're taking a risk, aren't you?' Irisis said quietly to Fyn-Mah. They were standing up the front by themselves.

'The scrutator has given me a valid instruction,' the perquisitor said stiffly, then, thawing a little, 'Besides, I am incurably identified with Xervish Flydd. If he falls, so must I.'

'You could change allegiances,' Irisis said slyly, to see how Fyn-Mah would respond.

'Change once and you are forever tainted, your word worthless. I have sworn to my scrutator and will not break my oath, whatever it costs me.'

'There are many who would not be so noble.' She spoke without thinking.

'I'll watch my back.' Fyn-Mah said icily. Especially when you're behind me, was the implication.