La peste à travers les éons

Missing, extremely new, or very obvious to obtain.

This achievement has no cultural references in the English and Chinese versions. It is specific to the game. The Hunt I in the Swarm Disaster expansion of the Simulated Universe talks about the Trailblazer waiting for Lan, but is disappointed when Herta says that THEY didn't exist during the Propagation's fall. But through will, the Trailblazer, with The Hunt's instinct, finds answers of why the Propagation had to die. The Swarm has consumed too much, disrupted the Order of the universe, threatened the Equilibrium, and has blocked the way of the Trailblaze (and still exists despite Tayzzyronth's death). THEY are, in essence, a "Plague Across Eons (Amber Eras)." Adding on to the word "Plague" in the chive's title, Lan exists to Hunt down Yaoshi, who has also been dubbed the Plagues Author.