In this task, you're given a context passage. Your job is to generate relevant questions that can be answered by directly referring to the passage.

Before you were turned , before you were even born , it started it's bloody course . Everywhere men and women were dropping dead , children grew up wild having no parents to teach them the ways of man . It was a dark time and , being creatures of the night , we were kings .
What may have caused the bloody course to start ?