The lyrinx must have been waiting for that, for three catapults fired at once and their balls of stone went through the mirror sail, tearing gashes which spread until the fabric hung down in tatters. It was released, the shreds winking in the air like tinsel. Each machine produced many smaller mirrors, the size of large shields, which the soldiers aimed individually. The effect was not as dramatic, but the lyrinx still broke when the beams struck them.

Eiryn Muss, Flydd's personal prober, or spy, came up beside him, whispering in his ear. Flydd looked surprised. He whispered back and Muss, an entirely nondescript fellow in his present disguise, slid away.

'What was that about?' said Irisis.

'Scrutators' business,' he "replied tersely.

The air-floaters continued their work for another hour, until, suddenly, it was all over.

'The last of the lyrinx are retreating,' said Flydd. 'We've survived – at least until nightfall.'

'So you think they'll come back?'

'You can't always tell with lyrinx. Since they've had to abandon Snizort, they may not. But then again, the opportunity to destroy our army in the dark may be too tempting to resist.'

The air-floaters were rotoring towards the command hill, but they did not all make it. A squad of lyrinx catapult operators had remained in position, camouflaged, waiting for just that moment.

A ball went right through the cabin of the lowest air-floater, shattering it into splinters and sending at least a dozen people to their deaths. Another missile struck the ovoid bag of a second machine, deflating it instantly. Fortunately it was, by then, only a few spans above the flank of the hill. The crash made a loud noise, though the machine did not seem to be damaged further. The other ten air-floaters made it to the ground a safe distance from the catapults.

'The lead one's flying the Council flag,' said Flydd, squinting through his spyglass again. I wonder who can be in command? Surely not Ghorr. The chief scrutator would never do anything to risk his mangy hide.'