Chronoplague

Appeared 20 years after The Second Divergence. Many believe that this is evidence that the First World Theory is just a myth made real by Chronos to avenge his fallen Titans. The Chronoplague first hit many of the First Worlders that showed up during the Second Divergence changing them into Chrombies. These mindless zombies were able to manipulate time, decay living creatures and objects by a mere touch. As the First Worlders showed up everywhere in the world, chaos ensued and the Forgotten Lands would see many as their enemies. Even many years after the event, the chronoplague still can appear in First Worlders that don't have the Mark of First Worlder, which appears on a First Worlder if he survives the Chronoplague for the first time. Many still believe that the mark is an indicator of something worse and people who have it are hunted. However, it was revealed that non-First Worlders can have the chronoplague and turn into chrombies. If they survive the process, they won't get the Mark.