Too obsessed with what could be created, no-one had considered whether it should be created in the first place.

At last, Ravachol and his servitors approached the blackness of the basilica's entrance, the enormous pilasters reaching to dizzying heights above him and a warm breeze blowing from the interior that carried the scent of musky incense with it.

He stopped to take a deep breath and stepped inside.

Remiare skimmed the surface of the transport tube, the gravitic-thrusters carrying her effortlessly along the interior of the metal tunnel. She knew her prey had come this way, passive data feeds embedded on the surface of her skull sensitive to the constant stream of information that flowed like an electrical river all across the surface of Mars told her so.

To Remiare, the air was filled with dancing motes of elections, each of which spoke to her, and each of which carried with it nuggets of information - useless in themselves, but gathered together they painted an image of Mars more detailed than even the most advanced bionics could produce. She was an island of perception in a sea of information.

Every electronic transaction was carried somewhere, via copper wires, fibre-optic data streams, radio waves, transmission harmonics or in a myriad of other ways. All of it filtered through Remiare's skull and though such a volume of information would send a normal human brain into meltdown, her cognitive processes were equipped with filters that allowed her to siphon relevant information and discarded the rest.

Already she knew which transport hub her prey had embarked upon and had watched a dozen different pict-feeds of him boarding the train bound for the northern temples. She had noted the number, type and lethality of the servitors accompanying him and knew their every weak point.

She emerged from the tunnel high above the iron surface of Mars, the mighty temples and holy precincts of the Cydonia Mensae temple complex spread out as far as she could see.

Data flowed around her in a spreading web of light and information.

Somewhere below, the Ravachol prey was awaiting death.

After the monumental majesty of the basilica's exterior, the interior was something of a disappointment. Where the exterior promised ornamentation and splendour beyond imagining, the interior spectacularly failed to deliver. The narthex walls were bare, unadorned metal, lined with connection ports where kneeling penitents were plugged into the beating machine heart of the building.

Beyond the narthex, a perforated chain link fence of brass divided the entrance to the basilica from the nave and chancel. Ravachol navigated his way through the mass of penitents, each one juddering and twitching as electric shocks wracked their bodies with cleansing pain.

Beyond the fence, row upon row of long metal pews marched in relentless procession down the nave to the chancel, where a hectoring machine priest, borne upon a hovering lectern, delivered his sermon in the divine language of the machine. Every pew was filled with robed worshippers, thousands of heads bowing in concert as the priest floated above them.

Ravachol cupped his hands in the image of the holy cog and bowed his head, feeling an acute sense of envy as he saw how heavily augmented the majority of the basilica's worshippers were. He lifted his metal hand, willing the silver, thread-like mechadendrites to emerge from his fingertips and wondered if he would ever manage to achieve such a state of oneness with the Machine God.

'Even the lowliest of us begin divesting ourselves of the flesh one piece at a time,' said a voice behind him, as though guessing his thoughts.

He turned and bowed his head as he found himself face-to-face with a basalt-faced priest clad in vestments that flowed like molten gold and reflected rainbow shimmers like spilled oil. Beneath the priest's robes, Ravachol could see a gleaming skeleton of brass armatures, whirring cogs and ornate circuitry.

The priest's head was long and equine, shaped like an angular cone with a softly glowing sphere embedded in its surface. Devoid of any features recognisable as human, the reflective surfaces of his head distorted the image of Ravachol's own features.

'You honour me,' said Ravachol, bowing deeply. 'You who are so close to union with the Machine God, and I an unworthy penitent who deserves little more than nerve-excruciation.'

'You are troubled,' said the priest. 'Your biometric readings are in fluctuation and, by every measurable parameter, I can see that you have come here seeking answers.'

'I have, yes,' agreed Ravachol. 'I find myself in... unusual times and I would value your guidance.'

The priest bowed and said, 'Follow me, my son. I shall hear your dilemma and offer a cognitive answer.'

Ravachol followed the priest, who slid through the air on a gliding platform of liquid metal towards an archway of iron that was lined with cog-rimmed skulls and glittering fibre-optic nerves. Beyond the archway was a surprisingly quiet corridor of brushed steel and glass that led towards a shimmering doorway protected by a crackling energy field.

The machine priest slid through the doorway and Ravachol hesitated at the edge of the priest's vestry, unsure as to the purpose of the energy field.

'Fear not,' said the priest, again understanding his thoughts, and Ravachol wondered what machine senses he possessed that blessed him with such intuition. 'The Confessor Field is quite safe. It isolates us from the rest of the temple. We take the sanctity of the confessional very seriously and none beyond this field can hear or monitor what passes between us.'

Ravachol nodded and ordered his servitors to wait outside before passing through the Confessor Field, feeling no more than a gentle tingle as he entered the vestry. Inside, the priest's chambers were devoid of ornamentation, aside from a single metal stool in the centre of the room. The walls were bare, save for an input/output port and a single data reader set in a dimly glowing recess.

He sat on the stool, feeling exposed as the priest began to circle the room, the glowing sphere in the centre of his stone face rippling with traceries of light.

'You may begin,' said the priest.

And so Ravachol began to tell of his time working for Adept Chrom and his secondment to the Kaban Project, his expertise with robotic doctrina wafers and his realisation that the Kaban machine's sentience was in violation of the Emperor's laws.

To his credit, the priest did not openly scoff at the idea of an adept of Chrom's stature disobeying the Emperor, but Ravachol could see that he was sceptical, despite his absence of human features. Ravachol then spoke of his confrontation with the Mechanicum Protectors and how the Kaban machine had terminated them without orders from a human being.

The machine priest listened to him tell of his flight across the Martian surface and his eventual arrival at the Basilica of the Blessed Algorithm.

'What should I do?' asked Ravachol when he had finished.

'Your story is an interesting one,' said the priest, 'and presents us with a question that has long vexed the Mechanicum since its earliest days. Your level of flesh degradation tells me you were not born when the Emperor made his peace with Mars, were you?'

'No,' said Ravachol, 'I was born a century ago in the Mondus Terawatt region.'

'Then you will know of the Emperor's coming to Mars, but not the substance of it,' said the priest, lifting a coil of silver cable from beneath his flowing robes and plugging it into the wall's output socket. The sphere on his black, equine head flickered and pulsed as information flowed from the temple and into his memory.

'The Emperor came to Terra as he began to formulate the plans for his Great Crusade. Our world and that of Terra had long been the bitterest of foes, for the ignorant tribes of the blue planet sat upon the ruins of ancient technologies they knew nothing about and could never hope to use. The Mechanicum had managed to weather the rampant chaos of Old Night and our leaders knew that to restore Humanity to its rightful place as masters of the galaxy, we would need the technology of ancient Earth.'