What was it, he wondered? Some new form of battle robot or servitor-manned automaton?

Maven shivered as he remembered the dead light in the machine's sensor blisters, feeling as though it had been looking at him, assessing him and then dismissing him. That thought alone angered him and he could feel the intemperate fury of Equitos Bellum meshing with him in a desire to do harm to the attackers.

The Protectors in grey cloaks were advancing with relentless pace through the reactor complex, gunning down unresisting servitors with quick bursts of laser fire, and engaging Maximal's Protectors as they sought to defend their master's holdings.

Maven unleashed a torrent of las-fire from his right arm and the ground erupted in a storm of metal and earth. The ruin of the enemy corpses geysered upwards, a knot of attackers reduced to puffs of exploding meat and boiled blood.

A flurry of gunfire rippled towards him, and he flinched as he felt a power field flash out of existence. Like a Titan, a Knight had a finite bank of energy shields to protect it, but where a Titan's reactor could replenish its shield strength in time, the Knight's battery could not. Equitos Bellum was effectively immune to most individual weapons, but the Protectors were combining their fire with accuracy of timing that spoke of a communal battle-link.

Another shield winked out of existence and Maven turned his war machine to face the new threat: a cadre of Protectors armed with long-barrelled high-energy weapons. Maven saw silver bands around each Protector's skull, recognising the hard-wired component of a targeting web.

He stepped sideways as a blistering beam of light leapt from each of the Protectors' weapons and achieved confluence where he had been standing not a moment before. He had seconds to act.

Maven's weapons blazed in a hurricane of light, enveloping the Protectors in a firestorm that obliterated them in an instant and left virtually no remains. He pushed onwards, past the flaming wreckage of the transformer as it spat arcs of lightning and secondary explosions detonated within its ruined shape.

Where the hell had the war machine that had done this gone? And where in the name of Taranis were Stator and Cronus?

An explosion mushroomed skyward from deeper within the complex, and Maven turned Equitos Bellum towards it, the heavy, thudding strides of the Knight shaking the ground with the weight of its tread. Another explosion roared and Maven guided his Knight around the curve of the reactor dome to see his foe with its back to him, unleashing solid spears of plasma flame that ripped through the armoured skin of the fusion reactor's dome.

The machine's bulk was enormous, almost as wide as it was tall, and it was equipped with a fearsome array of weapons - some Maven recognised and some that were a mystery to him. Where a Knight's mode of locomotion was its legs, this machine was mounted on a heavy track unit, blood and oil coating it where it had crushed unfortunate servitors beneath its bulk.

Sheets of molten armour cascaded like burnt paper from the flanks of the reactor dome, and Maven saw it wouldn't be long before the shielding around the caged fury of the fusion reactions within would be breached. Screaming sirens and flashing emergency lights warned of impending doom.

Despite the heavy crash of his Knight's footfalls, Maven didn't think his foe knew he was there. Maven siphoned power from non-essential systems as he prepared to open fire.

One of the metallic weapon-tentacles swivelled around on its mounting, and Maven had the sick feeling that it was looking right at him. Instantly, the rest of the weapon arms not already reducing the armour plating on the reactor to vaporised slag whipped around to face him.

Maven opened fire at the same time as the attacking war machine, his lasers impacting on a number of power fields before tearing one of the weapon arms from its mounting. The return fire struck Equitos Bellum full in the chest, collapsing the last power field and ripping through its armour. Agony roared up through the Manifold and Maven screamed, his hands jerking towards his chest as though the wound had been done to his own flesh.

The Knight staggered, and Maven fought to control its motion through the mist of jarring pain that seared through his every nerve-ending. He wrenched his consciousness from the damage done to Equitos Bellum and felt his vision clear as he saw the enemy war machine preparing to fire again.

Maven sidestepped and lowered his shoulder as another rippling beam of light seared towards him, burning through the edge of his shoulder armour. He flinched, but the damage was superficial and he locked in with his weapon arm, unleashing a stream of laser fire at his enemy's back.

'Got you!' he shouted as the impacts marched over the machine.

The shout died in his throat as he saw that his shots had done absolutely no damage.

A rippling sheath of invisible energy surrounded the machine where none had existed a moment before. Only one explanation presented itself.

The machine was void protected.

'Damn it,' he hissed and his hesitation almost killed him as the machine spun around on its axis and took time out from its unravelling of the reactor's armour to fire on him.

Dazzling lasers sleeted past him and Maven desperately walked his Knight back out of the line of fire. Flames boomed to life around him as fuel stores exploded, and he felt the heat wash over his mount. A lucky shot grazed the pilot's compartment and a sharp crack sliced down through his vision.

Maven screamed in pain, his hand reaching up to his eyes where it felt as though a hot needle had been shoved through to the back of his skull. His vision blurred, but he kept moving, backwards and from side to side, to throw off his assailant's aim.

Fresh streams of laser fire seared the air around him, but none touched him, and as the pain of Equitos Bellum's wounding diminished, he dodged the machine's incoming shots, its fire patterns following textbook sweeps.

But Raf Maven was anything but textbook.

He swung his Knight around the corner of the reactor, sweat streaming down his face and a thin trickle of blood dripping from his nose.

'Stator! Cronus!' he yelled. 'Where in Ares's name are you?'

Then the reactor exploded.

The stilt-walking vehicle moved through a city of wonders and miracles.

Everywhere Dalia looked she saw something new and incredible. Once lost in the midst of the towers and forges, she realised she had never seen anything like the domain of Koriel Zeth, its design and scale quite beyond anything she had imagined before. Though the Imperial Palace on Terra was much, much larger, she appreciated that the Emperor's fastness was not so much a piece of architecture, but rather a handcrafted land mass built upon the world's tallest mountains.

Even on the rare moments she had been permitted to venture beyond the confines of the Librarium, she had only ever seen a fragment of the palace's majesty, but this place she had seen in its entirety.

Even then, she suspected that what she had seen from the air wasn't the whole story.

Rho-mu 31 kept his counsel throughout the journey, content to watch the spires and smoke-belching furnaces pass without comment. Nor was this a city without an organic component, for thousands paraded through its razor-straight thoroughfares and shining boulevards.

Hooded menials, grey-skinned servitors and glittering, holo-wreathed calculi mingled on the metal streets of the Magma City. Robed tech-adepts moved like royalty through the crowds, carried on floating palanquins or wheeled chariots of golden metal, or borne aloft on what looked like gilded theatre boxes with slender stilt legs. All of them bore the number grid symbol of Adept Zeth somewhere about their person.