Changes

After [[Horus]] [[Battle of Davin's Moon|was wounded ]] on [[Davin]], Vaddon was one of the Apothecaries to who rushed to save Horus' life and demand to take , taking him to the [[Apothecarion]] aboard the ''[[Vengeful Spirit]]''. {{Fn|1a}} Whilst aboard the ''Vengeful Spirit'' Vaddon would be was unable to stabilise Horus' the wound inflicted on Horus by [[Eugan Temba]] with himself not , partly due to his lack of understanding all of the [[Primarch]]'s physiology to the frustration of . This frustrated [[Abbadon]] , who would slam slammed Vaddon against the wall in frustration. Vaddon would agree with [[Loken]]'s theory that finding the weapon to inflict that inflicted the wound could save Horus more to give Loken hope. {{Fn|1b}} After Horus rose from the SerpantSerpent's Lodge , Vaddon would reveal revealed to Loken that the [[Anathame]] had been given to [[Fabius Bile]] by the Warmaster's own orders. {{Fn|1c}} After the surrender of the [[Auretian Technocracy]] Vaddon would discover discovered that it was [[bolter ]] shells that had killed the Commander of the [[Byzant Janizars]], [[Hektor Varvarus]] and that it was fired by an Astartes bolter. {{Fn|1d}}

Vaddon would be deemed as a loyalist by the Warmaster and sent down as the first wave on [[Istvaan III]] to assault the Siren Hold alongside Garviel Loken, [[Tarik Torgaddon]], [[Nero Vipus]] and the other Sons of Horus deemed too loyal to the Emperor. {{Fn|2a}} On the final assault of the Precentor's Palace, Vaddon would be trying tried to save the life of a brother Astartes, [[Casto]], alongside his assistant from the [[Emperor's Children]], [[Mathridon]], where . [[Lord Commander]] [[Eidolon]] would find found them there thanks to [[Lucius (Emperor's Children)|Lucius]]' betrayal, where ; Eidolon would kill killed Vaddon, crushing his skull with a single blow of his [[Thunderhammer]]. {{Fn|2b}}

*{{Endn|1}}: [[False Gods (Novel)]]{{CME}}

*{{Endn|2}}: [[Galaxy in Flames (Novel)]]: