Jareth had never encountered such a thing in the game, and even in the forums, no one mentioned the existence of a sane evil spirit existing in the forest of hatred.
Many daring players have tried exploring the entire forest of hatred, and they uploaded videos of it in the forums.
Jareth has seen many of them and knows that the existence of this 'sane' evil spirit is definitely something very unique.
In the first place, evil spirits are beings born from lingering resentment, hatred, and miasma.
There's another way, and that is to corrupt an already existing spirit being and turn it into an evil spirit.
No matter the method, according to common sense, any creature that has so much hatred and negative emotions coursing through their body along with miasma corruption shouldn't be 'normal.'
This is the main reason why it's near impossible for an evil spirit to maintain its rationality and stay sane.
