They do all sound to be from the same story. Lilith granted the beasts a will, but that will could not suit their ideas of perfection. The Scribe doesn't appear to write everything related in the same book.

[Which is unfortunate and annoying.]

It is interesting that their intentions seem to have shifted. The mirror seems to have some sort of ability against darkness, but we have found nothing to indicate it can do the same thing to banish light. Yet Lilith's original intention was the absence of both?