After the end of the Horus Heresy, and before the Night Lords had fled alongside their traitorous brethren into the Eye of Terror, their Primarch Konrad Curze was assassinated by a Callidus Assassin on the world of Tsagualsa. At some point following the death of the Night Haunter, Anrathi was promoted to the rank of Captain and elevated to command the entirety of the Night Lords' 10th Company. Talos eventually rose to the position of the 1st Claw's de facto Sergeant not long after, though he was never explicitly promoted above his original station of Apothecary.