Entry Number 6:

I think I've found it. A book written on Demons, Angles, and summonings. The author had placed multiple enchantments on the book to keep others from reading it, but they were weakened, and I quickly removed them. The book contains decades of gathered knowledge on the spirits.

But there's more. I've been struggling to find records of a Demon or Angel strong enough for what I have planned, but I haven't found any so far. An Angle would most likely deny my plans. Higher level Demons stopped appearing centuries ago.

The book describes a different option. Something that's only happened once, according to the author. Hundreds of years ago, they met a Dark Angle. It's a spirit summoned with two types of blood. The book describes it as having black feathered wings and demon horns. It mentions that the Dark Angel is unable to return to the Neather realm, and posses a physical form.

That last fact might be an issue, but a Dark Angle is undoubtably strong enough for the contract I have planned. I'm going to have to trick it into accepting.

I'm going to summon it tonight.