Editing Lyster Larrey (section)

===The Life Bringer===
Larrey was sought out by none other than [[Johannes Vrach]] of the [[Life Bringers|XII Legion]]. Vrach was an expert in disease and by consequence biological and chemical warfare which had become two pillars of his Legion’s combat operations, and he had been gathering talented individuals for his Legion’s biological research cadre. During this period he heard from Gentor [[Wilmut Sachs]] - himself a pupil and disciple of Larrey from the earliest period of the Legion’s existence - that there was no greater expert within the Mechanicum on biology and biotechnology than Lyster Larrey, and Vrach determined to seek him out personally.

This became an imperative after the long and bloody Laconda IV Campaign, against the Xenos Madrelaniak who were not only immune to the poison gas and biological weapons deployed against them, but actively strengthened by them to the horror of the Life Bringers. That campaign cost over 22,000 Life Bringers, the single costliest campaign the Legion would face before the Rebellion. In its wake a need was there to dramatically expand the speed at which new recruits could be transformed into Astartes to replace the catastrophic losses incurred, and given his service to the Legion Project itself Larrey was now top priority for Vrach. 

It is believed Vrach’s own brother [[Uriel Salazar]] was the one to finally track down Larrey, who it turned out was attached to a battlefield disposal formation serving in the wake of the H'cheme Campaign, cleaning up the corpse-littered battlefields. For a figure once regarded as the greatest of his order, this was surely rock bottom. For the grimy figures busy identifying and burning corpses, the giant figure of the Primarch must have come as a shock, moreso when he asked for their supervisor.

Larrey found himself shocked when Vrach asked for his aid to rebuild his Legion. For the first time in over half a century Larrey found himself called back to the duty he did best, working with the Legiones Astartes.  The two found much in common, with Vrach finding himself enamoured of this master of genetics who understood his Marines and was seemingly empathetic of his desire to use them as a force for good, not just as a tool of war and compliance. Larrey himself was deeply impressed with Vrach’s own understandings of genetics and biotechnology, and decided to make Vrach his newest pupil.

Upon arriving with the main Legion Larrey found himself working closely with his old student and protege [[Wilmut Sachs]], who had risen to be the head Apothecary and head of the Life Bringer’s own Genetor Program. Sachs could even teach Larrey a thing or two and Larrey eagerly devoured nearly a centuries worth of information that had passed him by during his long exile.

As the crusade continued Vrach eagerly absorbed Larrey’s teachings and soon became an unparalleled master of genetics, able to personally intervene whenever any issues with the Gene Seed of his sons was uncovered. Larrey also found himself in the same position he had been when the Apothecarion was first founded, as a mentor figure. His techniques learned both in the gentics lab and on the brutal battlefields of the Crusade gave the Apothecaries of the Life Bringers one of the highest success rates in the entire Legiones Astartes. It is known that Aubrey the Grey Himself sent his most promising Apothcaries to be taught by Larrey when the two Legions served together against the Drozass, passing those skills onwards across the Legion Apothecarion.

However Larrey’s old hunger, the one which had seen him shamed and exiled once more reared its ugly head, and this time Larrey had a master who was all too willing to let his transgressions slide. For when Vrach learned of Larrey’s desires to improve on the Space Marine Organs, he secretly allowed him to experiment on a number of dead Life Bringers, reasoning that in death they could help Larrey ensure that the next generation would be stronger and better able to fight their battles for mankind both on and off the battlefield. So Larrey began to experiment on Space Marines with an enthusiasm that bordered on madness. At last he could do what the Emperor had forbade him to do, and he would show the Emperor the folly of his ways.