Heartless

The Heartless are creatures that appear to be composed of darkness. There are places which Heartless appear more frequently than in other places, and there is a statistically significant correlation between Heartless frequency and the amount of darkness within said area.

This evidence suggests that Heartless are born from darkness itself, as darkness was the only thing that determined Heartless frequency. All other variables showed no statistically significant correlation with the frequency of Heartless formation. Thus tells us that darkness has a method of manifesting into these Heartless. This method is one we intend on studying. If we find out how it works, then we can hopefully engineer ways to neutralize it.