Picker snapped out a hand and caught Blend’s blood-stiffened cloak, pulled. As the lieutenant dragged free her sword, she hissed: ‘Head down the stairs, lass! We’ll follow once we clear this up.’ She shoved Blend towards the stairs, then spun.

‘Will this take long?’ Lady Envy asked, her voice somehow cutting through the tumult to echo in Picker’s ears as she pushed into the press. The Urdomen were better armoured, fresher, and had had surprise on their side. Picker saw Bucklund reel, half his head cut away. ‘No,’ she grated, as two more Bridgeburners crumpled, ‘it won’t...’

Detoran had moved to point as the four Bridgeburners headed down the corridor. Mallet strode five paces behind the big Napan woman, Spindle trotting at his heels, followed by Antsy, with Trotts a dozen paces back as rearguard. Thus far, they’d found naught but bodies – Pannion bodies – cut down one and all by blades.

‘Someone’s a holy terror,’ Spindle muttered behind the healer.

They could hear fighting, but the echoes were bouncing, making it difficult to determine the direction.

Detoran drew up and raised a hand, then waved Mallet forward.

‘Stairs ahead,’ she grunted. ‘Going down.’

‘Clear,’ the healer observed.

‘For now.’

Antsy joined them. ‘What’s the hold-up? We gotta keep moving.’

‘We know, Sergeant,’ Mallet said, then he swung back to the Napan. ‘It’ll have to do. Lead us down, Detoran.’

More corpses littered the stone steps, the blood making purchase uncertain.

They descended past two landings unchallenged. Halfway down the next flight, at a switchback in the stairs, Mallet heard the Napan grunt, and weapons suddenly rang.

A wordless shout from behind twisted into a Barghast warcry.

‘Dammit!’ Mallet snapped. Fighting above and below – they were in trouble. ‘Spin, back up Antsy and Trotts! I’ll lend Det a hand!’

‘Aye, sir!’

The healer plunged down a half-dozen steps to the bend. Detoran had already pushed her attackers back to a landing. The healer saw, beyond the Napan, at least six Seerdomin, heavy, short-handled double-bladed axes in their gauntleted hands. Detoran, a shortsword in her left hand, broadsword in her right, had just cut down the warrior in front of her. Without hesitating, she stepped over the dying Seerdomin, reaching the landing.

The Seerdomin rushed her.

There was no way to get past the Napan. Swearing, Mallet sheathed his shortsword and unlimbered his crossbow. A quarrel already rested in the slot, held in place by a loop of leather that the healer now pulled clear. Ignoring the bellows and singing iron, he hooked the clawfoot over the braided string and cinched it back.

Up beyond the bend in the staircase, Trotts had begun chanting, broken only by an ominous shriek from Antsy. Fresh blood thinned with bile was streaming down the steps.

Mallet moved back to find a clear shot over Detoran.