Halbazzar Drin is the owner and proprietor of Sorcerous Sundries in the city of Baldur's Gate. He sells many magical items such as scrolls, wands and ammunition, many of which aren't sold elsewhere. He also buys the lock of hair from Abela for 500Goldpieces, or you can give him 100Goldpieces and the lock for the Nymph Cloak, or you may pickpocket the cloak also.