A Visitor for the Night Watch

Bornir,
you are on watch with Felnar and Morgrim the first night after defeating Quesnef the Ogre Mage. Everyone is out of spells and anxious to heal up tomorrow.
You take the time to clean and dress your wounds, cut new bandages for the next fight, and sharpen your axe. While focusing on these tasks you feel a tugging at your cloak hem.
You look down and spot a beady eyed raven - Belfinn. He speaks quietly to you, so that your friends can't hear. "You're a hard one of find. Under White Plume Mountain of all places. I spoke with Bhelial and heard you'd died. Tough luck that. Anyhoo I am here to extend to you an offer. You will encounter Ulla soon I think. Kill her and I will work for you. In return I will ferry your soul to hell, probably a Looong time from now, what with your friends raising you from the dead and all."
You say "Not interested 'crow' though I am curious what could you do for me?"
"Well, as Bhelial said I am an agent of Abbathor, so I work for dwarves. Should we sign a contract, assuming my last contract is over, I would work as your agent and in my presence you would heal at an accelerated rate and be somewhat immune to magic spells." The crow regards the scorch marks on your armor and the walls from the fire ball and explosive cascade "Dwarves, I've noticed, have difficulty dodging such spells. Much handier to be immune."
You know you are no good at bluffing, and wise enough to not even try. You stand up and clutch your axe and helm gaining the notice of Morgrim and Felnar "I am true to my god Clangeddin, and his father Moradin 'the Soul Forger'. I have been tested, saved by my friend Lath and in turn saved Aaardgal. I have no need for your friendship. Begone with you lest I decide to eat crow tonight."
The crow looks cross, if such is possible for a bird, flutters his wings at the mention of harm and says "Very well. I will seek my next master elsewhere." The crow seems about to speak more, when Morgrim and Felnar approach, thinks better and disappears from sight. A faint whiff of brimstone leads you to believe he has left.