He protected the [[Khalaian Gate]] spaceport on the conquered [[Imperial]] world, under the command of [[Necron Overlord|Overlord]] [[Qemau]], when the forces of the [[Ultramarines]] later invaded. A small force of the [[Space Marines]] then entered the spaceport, in order to gain access to its [[Astropathic Station|Astropathic Relay Station]] and learn how [[Vertigus II]] had fallen to the [[Xenos]]. As the [[Necron]] lay in wait, Qemau grudgingly accepted the insubordinate Tynakht's aid, due to the [[Destroyer Cult|Destroyer]]'s skills as a killer{{Fn|1a}}. In the battle that followed, Tynakht made great use murderous abilities, until he was killed by one of the Ultramarines' [[Bladeguard Veteran|Bladeguard]]s. [[Qemau]] met his end as well, but the surviving Necron forces were able to defeat the Space Marines.{{Fn|1b}}