Talk:Dark Young/@comment-115.66.143.156-20161005045721/@comment-29248623-20161005052734

The Dark Young aren't permanent creatures as opposed to the Skeleton Army brought up by Ainz and Pandora's Actor. The case with the other undead was that they were specifically summoned and bound with a corpse/parts of a corpse of inhabitants of the NW. Despite the Dark Young requiring the death of beings through the initial summoning ritual, they are not bound to the world the same way as the other undead.

Now, going back to the summoning process:

Step 1: Cast  Iä Shub-Niggurath. It results in the death of all creatures within the Area of Effect

Step 2: The offering is accepted by The Black Goat with a Thousand Young. The sky opens up and black tar oozes from the tear

Step 3: The Dark Young emerge. The ground covered by the tar begins to sprout tentacles and the Dark Young manifest themselves.

When you look at it, corpses aren't directly necessary as they are a by-product of the process.

Where exactly do you recall Ainz threatening Brain?