While working through the Finish the Masterwork Weapon quest in Baldur's Gate 3, players will find themselves in need of the bark of a Sussur Tree. As is indicated in-game, such a tree can be found in the Underdark, an area that fans can explore as they transition from Act 1 to Act 2. This guide is here to provide more information on how to access that subterranean area in Baldur's Gate 3, and it will help players find the Sussur Tree that is within it.