How Gorak Got His Groove Back

Seeking redemption, an exiled and disgraced troll warrior answers the summons of one of the most powerful wizards in the Canabeer Territories.
He's not the only one to answer the summons, though, and the captain of the Watch doesn't plan on letting just anyone into the city.
Entry to the city will be violent, the quest will be perilous, the wizard will undoubtedly be shady, but few things can stand in the way of a determined troll.