Irisis had not meant her words the way they were taken, but it was too late to withdraw them.

The wall of Snizort was four spans high and equally thick, topped with thorn bushes scarred here and there by fire, and torn and smashed by catapult balls. The wall had been breached in five places and was unmanned.

They cruised along inside. The breaches, and the smashed gate, were piled with the bodies of the dead, lyrinx and human. Other dead were scattered across the enclosed space. Irisis saw no sign of live enemy, though from a high point she could see columns of lyrinx streaming away to the south-west in the direction of the Sea of Thurkad. Their withdrawal had been astonishingly swift.

Smoke issued from a tarry bog and several of the pits, which would make access to the underground city difficult. The ground above the node-drainer, which had risen up in a red-hot dome just before the node exploded, was now a fractured, fuming hole. Further off, though still inside the walls, the Great Seep formed a bottomless cauldron of tar about a league across. The source of the tar at Snizort, it was steaming gently. The exploded node lay some leagues to the north, and underground, but it was too smoky to see that far.

The sun touched the western horizon. Irisis looked the other way, back towards the command hill. The scrutators must be inside the tent, with Flydd. She turned towards Snizort again. 'There can't be any creature left alive underground,' she muttered. 'The whole place is on fire.'

'That's where you're wrong.' Fyn-Mah replied. "Tar burns hot, but it burns slowly. Most of the city will yet be untouched. Let's go.'

'In there? We'll choke before we've gone a dozen spans.'

'The fire draws air to it. Away from the burning core, the air should be fresh. Our orders are to get inside, if we can, and recover any of the flesh-formed creatures left alive.'