Black scorpion to sharpen one's wit; ahriman membrane for the mind. - Severian

Beady Eye

Summon your beady eye minion. That feeling you get sometimes that you are being watched? More often than not it is him.

One of the most outlandish theories recently posed by scholars of the void is that ahrimans do not reproduce by typical sexual means, but rather by shedding tears which eventually grow into new creatures.