Sharwyn
The celestial elixir that Sharwyn seeks is located in the Tanglebrook Estate in the peninsula. The Belt of the Performer +1 adds a +1 bonus to your charisma, as well as to your perform and persuade skills.
Voilà ce que j´ai trouvé sur :
http://gamespot.com/gamespot/gameguides/pc/nwn/p4_03.html
Je vais essayer !