So, I was recently in Raedric's Hold, fighting the master of that place once more. After defeating him, apparently proving that I'm a better Berath champion than he was a Fampyr proposed to give it's services to me. I agreed.
But now what? The only effect I can see is lowered Glided Vale reputation. I can not find it anywhere in my stronghold, it's not on the hireling list (like the Ogre I once recruited is). What happened? Is it a net-loss situation?
[edit 07.07.2016] On my new playthrough said Fampyr did not offer its services. Perhaps it was removed in some patch? If someone could confirm / find the relevant patch notes this question can probably be closed.