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[Who] Vollinger [Where] Dernholm [Why and How] 
A gnome thief standing at the bar in the inn who will join your party if you are roughly at his experience level of 15. Virgil doesn't trust him though, which is quite right if you're playing a goody-two-shoes type. Vollinger is of evil Alignment. He can train you as an Apprentice in: Backstab, Pick Pockets, Prowling, and Spot Traps.
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Why and How