Taut violence filled the glade, a sure promise announced in the sudden thrashing of the moss-laden branches. The historian saw a swarming cloud approach Bult from behind and shouted a warning. The Wickan whirled, long-knives in his hands. He screamed as the first of the wasps stung.

‘D’ivers!’ Kulp bellowed, one hand grasping Duiker’s telaba and pulling the historian back to where Sormo stood as if dazed.

Rats scampered over the soft ground, shrilly screaming as they attacked a writhing bundle of snakes.

The historian felt heat on his legs, looked down. Fire ants swarmed him up to his thighs. The heat rose to agony. He screamed.

Swearing, Kulp unleashed his warren in a pulse of power. Shrivelled ants fell from the historian’s legs like dust. The attacking swarm flinched back, the D’ivers retreating.

The rats had overrun the snakes and now closed in on Sormo. The Wickan frowned at them.

Off where Bult crouched slapping futilely at the stinging wasps, liquid fire erupted in a swath, the flames tumbling over the veteran.

Tracking back to the fire’s source, Duiker saw that an enormous demon had entered the clearing. Midnight-skinned and twice the height of a man, the creature voiced a roar of fury and launched a savage attack on a white-furred bear – the glade was alive with D’ivers and Soletaken, the air filled with shrieks and snarls. The demon landed on the bear, driving it to the ground with a snap and crunch of bones. Leaving the animal twitching, the black demon leapt to one side and roared a second time, and this time Duiker heard meaning within it.

‘It’s warning us!’ he shouted at Kulp.

Like a lodestone the demon’s arrival drew the D’ivers and Soletaken. They fought each other in a frenzied rush to attack the creature.

‘We have to get out of here!’ Duiker said. ‘Pull us out, Kulp –now!’

The mage hissed in rage. ‘How? This is Sormo’s ritual, you damned book-grub!’

The demon vanished beneath a mob of creatures, yet clearly remained upright, as the D’ivers and Soletaken clambered up what seemed a solid pillar of stone. Black-skinned arms appeared, flinging away dead and dying creatures. But it could not last.

‘Hood take you, Kulp! Think of something!’

The mage’s face tightened. ‘Drag Bult to Sormo. Quickly! Leave the warlock to me.’ With that, Kulp bolted to Sormo, shouting in an effort to wake the youth from whatever spell held him. Duiker spun to where Bult lay huddled five paces away. His legs felt impossibly heavy beneath the prickling pain of the ant bites as he staggered to the Wickan.

The veteran had been stung scores of times, his flesh was misshapen with fiery swelling. He was unconscious, possibly dead. Duiker gripped the man’s harness and dragged him to where Kulp continued accosting Sormo E’nath.