Ok. I drew his wolf and human form, and I might draw others, but those two are his main forms. The links are on my first post. Let me know if you need anything else.

Alright. Do you have any information on his early life, like creation/birth?

Yes, I do!

When The Unknown Darkness was made, he was told to protect the earth and it's humans. So, he did as he was told. But, as he carried out his duties, he found himself alone for a long amount of time. He tried to made friends with the humans, but since he gave them so many nightmares, they where afraid, and thought if The Unknown Darkness was seen, it was an ill omen. So, he was alone.
But, once the fifth teeth gathering was held, he was finally able to meet the other gods, and hopefully befriend them. But, since he never had any social interactions, he just stood there in silence.
But, after a while The Known Flame came up to him. And, ever since then, they became friends.

That's sorta all I can think of right know.

Alright, awesome. I'm going to be traveling so I'm not sure how much I'll be able to write, but I'll keep you updated.

It's alright, I understand. ^u^ Thank you for doing this for me.

No problem, I hope you like the end result.

Alright, I'm now back home and able to write again, so I'll be working on your order. Because it's a long order, it may take a while for me to get it done. Is that alright?

Yes, it is alright.

Here's what I have for his introduction so far. Tell me if everything is alright or if you'd like anything changed;

Loveroanimals's Unknown Darkness

Introduction
The Unknown Darkness is an entity of neither human nor animal makeup, a god of sorts, walking both the astral and mortal planes. Although he is a god and therefore inhuman, he does enjoy taking on a human form from time to time, though it is certainly not like that of a normal human. While in human form, his skin is entirely pitch black, and his eyes a bright, unnatural red. He wears a skeleton grin, with curled lips and black tendrils of smoke seeping from between his teeth. Although he can make his form look more natural, this is what he is usually seen as, a mix between a person and a shadow. When he is not in human form, he prefers to be in his wolf form, as a pure black wolf with bright red eyes and smoking tendrils coming from his body. He is about twice the size of a normal wolf, as well, all of which makes him stand out and makes others realize he is no normal creature.

His job on Earth is to look over the planet as its protector. Sometimes, he goes into people's dreams as nightmares, in order to prepare them for the worst. This is not a job he enjoys, however, and he does like to have fun as well, sometimes only speaking to people in their dreams as his human or wolf form (he has found that people react interestingly to a talking wolf). He takes his job as a protector very seriously, however, and feels lonely and upset because most people are afraid of him. Because he is neither good nor bad, he has no real enemies, as no humans can stand up to him, and other gods tend to keep their distance. He can sometimes be seen around The Known Flame, and when Just Ice was alive, he saw her as his sister, even though she wanted to be more to him than that.

This is pretty good! I like it, and I don't have any changes to add to it. Good job. ^u^