The LAM-Exios clade, to their credit, made it most of the way back to the Impossible City. Their journey halted when they encountered the devastated remains of a XVI Legion Reaver Company and its tank support seeking to cut ahead and ambush the fleeing Imperial convoys.
As they were designed and programmed to do, the battle-servitors of LAM-Exios advanced with kill/extinguish battle subroutines, unleashing a withering torrent of firepower on the enemy units charging towards them.
Aravolos of the Cult Myrmidia, his bulky form shrouded in tattered robes of Martian red, deactivated his link to the noosphere. Simultaneously strangling an officer of the Emperor’s Children with all four of his mechandendrites, and releasing sustained beams of volkite energy at the rest of the sergeant’s squad from his fixed gunlimb, he was already engaged in the consecrated act of waging war.
His muddy, bloodstained consciousness lacked the time and focus for the Archimandrite’s treason.
Heaving with his mechadendrites he lifted the ceramite-clad warrior into the air. A second application of effort crushed the warrior’s gorget, broke his neck and tore both arms from their sockets. Aravolos hurled the remnants towards the ignited, retreating figures of the sergeant’s squad, and turned in search of another life to end.
Echo-Echo-71 abandoned the convoy and led his warriors into the ancillary tunnels, as ordered. He possessed more autonomy than many of his alpha-kind, even among other sicarii, but held little comprehension of the immensity of the Great Work even after several years of fighting inside its boundaries. The equation of his loyalty ended in simplicity: the representative of the Fabricator General had canted that Sacred Mars cried out for liberation, and that duty overruled any other.
His expedition proceeded far more smoothly than many others. Without trouble, he reached the specific rendezvous locations marked by the Archimandrite, bypassing the tunnels she had calculated as most likely to be stormed by the foe. He sent out scouts to mark the passages yet to be taken, then progressed only when confirmation arrived that they were clear. He moved his warriors in disciplined kill-teams, their stalk-tanks and ’strider units dispersed to repel, with maximum force and response time mobility, any sudden ambush.
All was proceeding apace until the tunnel through which they marched ended abruptly. They had long ago branched off into the true webway rather than the Mechanicum’s purpose-built avenues, and now found themselves facing a tunnel that continued on the map, yet appeared blunted before their eye-lenses.
It ended in golden mist. The advance scouts had entered and immediately fallen silent. Quite what this portended, Echo-Echo-71 couldn’t be sure.
He sent in one of his ’striders, warning the female pilot to be high-sense aware and cant back a continual datastream. She vowed obedience, lurched forwards on her spindly legged dune walker as she began exloading a code-flow of perception data, and entered the mist.
Whereupon she immediately fell silent.
Echo-Echo-71 considered this. The Archimandrite’s cartography may have been flawed through inexperience or the vicissitudes of this unnatural realm. The original source may have also been flawed, given that the Unifiers focused their efforts on constructing their own routes to link with the established webway rather than wandering significant distances and recording alternate routes. Archival data showed that such scouting expeditions had been part of the initial steps of the Great Work, but such practices ended with the devastating manifestation of Magnus the Red, and the deployment of the Ten Thousand and Silent Sisterhood to defend the Mechanicum labourers.