Mei'ah
Mei'ah the Shadow Blade is the codename of a Callidus Assassin, who conducts her missions with swift brutality. However when she is not fighting the Imperium's foes, Mei'ah prefers to be called Aquinis.[1b]
History
She is amongst the Callidus Temple's Assassins that serve in the Indomitus Crusade[1b] and Mei'ah has aided her Crusade Fleet in reclaiming many of the Imperium's lost worlds.[1a] This was done through not only the Callidus Temple's martial skills, with the Sword of Placement and the Soulcrush Rifle, but also through Mei'ah's ability to change her appearance. By doing so, the Callidus was able to infiltrate the strongholds of Heretics and Xenos. Once inside, Mei'ah would then gather intelligence on the fleet's enemies or impersonate their foe's leaders. However it was by impersonating a world's local leaders, that she aided her fleet the most. This allowed Mei'ah to enact a diplomatic solution to some of the conflicts the fleet faced, while trying to reclaim the Imperium's worlds. When this occurred, the Callidus proved to be more effective than an conventional attack by an army.[1b]
However Mei'ah's service was nearly ended,[1b] when her Indomitus Crusade Fleet was ambushed by the Prophet's Black Legion warband. This left its Space Marine Commander with no choice, but to order the fleet's warships to escape into the Warp. Despite doing so though, the Sorcerer Lord tracked them within the Warp and launched an attack on the Commander's Battle Barge flagship. But as his forces fought the Imperials, the Prophet began secretly summoning Daemons within the Battle Barge. They materialized throughout the flagship and once he was done, the Sorcerer Lord ordered his warband to withdraw. Shortly afterwards, the Daemons caused catastrophic damage to the Battle Barge and the Commander enacted an emergency exit from the Warp.[1a]
While the Indomitus Crusade Fleet survived doing so, it was left scattered within an Imperium Nihilus Sector.[1a] The Commander then began regrouping his forces and as he did so,[1c] he learned that that very same Sector was now being invaded by the Prophet. The Commander then led Mei'ah and the rest of his forces against the Sorcerer Lord's warband, in order to save the Sector's worlds.[1d] Thanks to the Commander's leadership, the fleet was able to foil[1f] the Prophet's plot to pull the Sector into the Warp,[1e] though the Sorcerer Lord escaped before the Imperials could kill him.[1f] The vengeful Prophet then sought to free the imprisoned Daemon Prince Halphas, so that he could destroy the fleet and its Commander.[1g] However despite succeeding in doing so, the Imperials defeated the Daemon Prince. Afterwards, the Commander confronted the Prophet and once again defeated the Sorcerer Lord.[1h]