Corruption. A thing that clouds the mind, and darkens the soul. It is an ever-present evil in the world, forever hungry and never satisfied, it feeds on the pain and suffering of others. It infects the mind, whispering lies and doubts, leading those affected down a path of despair.

And once the mind is weak enough, it takes hold, consuming the soul and bending it to its will. It is a slow process, starting subtle, but once the corruption takes hold, it is nigh unstoppable