Astartes defend Hexis from Necron threat

The war on Hexis had ground to a stalemate with all sides simultaneously too stubborn to give up their hard won gains and also not willing to invest further resources into a pointless meat grinder. When Imperial Storage facility 1027 Alpha Tertius stopped responding to vox communications it drew concern from theatre command because the sites distance from the front lines made it an unlikely target of enemy action. Fearing a party of traitor Astartes had somehow infiltrated deep behind Imperial lines an alert went out and a mechanised column of Astartes from the Hammers of the Emperor chapter diverted to investigate the facility.

On arrival they found the storage compound eerily quiet and deserted. Where sentries had once stood only small piles of dust remained to show they had ever been there. The armoured column sped into the compound and the Marines inside rapidly disembarked to form a defensive perimeter. Only then did their enemy reveal itself – not the corrupted servants of chaos but xenos Necrons. A carpet of scarabs swarmed through the abandoned buildings and completely surrounded the Hammers of the Emperor. Not waiting to be pinned in place they immediately pushed forward and focused their strength against a single point in the softly rustling scarab carpet in an attempt to break out of their encirclement. As they cleared the way with grenades and swinging hammers they were suddenly beset by heavier Necron forces. Transports exploded and many Astartes fell in the initial ambush but they survivors maintained good order and did not falter. Each Astartes left standing felled a score of xenos as they hacked their way through the encirclement until suddenly the strange xenos faded from existence. Only the fallen bodies of their battle brothers and detritus of spent ammunition casings and weapons impacts remained as evidence that they had ever been there.

Back at theatre command helmet pict recordings of the engagement caught the attention of the Inquisition. The xenos bore a striking livery of aged gold and black marble that didn't match any known dynasty. The Necrons also seemed oddly out of phase with reality, sometimes solid, sometimes faintly transparent and sometimes obscured in bursts of pict static. Although they moved in the typical slow shambling gate of their foul species they would frequently suddenly appear elsewhere but try as they might analysts could find no instance of the means by which they achieved this having been recorded or witnessed. As to the motivation of the strange aliens the Inquisition could only speculate, but it seemed likely they had been drawn to the facility by several storage units that housed miner necron artifacts and relics recovered from the subterranean tombs and kept there for future analysis.