"I did not know you would gain this demon from me, ma petit, and nothing I can say will convince you of that. I know that. I await you here until you have wrestled the demon, whatever the outcome." And he shielded from me, hid himself away so he would not feel what was happening, left me along to make my choice, as if I was still capable of choosing.

(Narcissus in Chains, page 107, paragraph 8)

* The arduer is a need to feed from lust. It's a hunger that can never be satiated, but after a fashion, it can be controlled. The only way it can be fed is through sexual energy. It does not necessarily need to be intercourse, and blood can be involved, but the main component is lust.

* Jean-Claude gave Anita the arduer when they married the marks in NiC.

* For Jean-Claude, he was at the mercy of the arduer for five years before Belle Morte taught him control.