Six Swords Unbound

Publisher's blurb:

In intense non-stop battle with dramatic story consequences awaits adventurers in this 4-hour adventure for 5th to 10th level characters.

In an effort to secure a surface trade route, adventurers find themselves embroiled in the revenge schemes of a powerful drow exile. The chance to learn about the state of the Underdark and the fates of many innocents taken in surface raids is too valuable to pass up. Yet the risk is clear, for what lies ahead is nothing short of an all-out assault on a drow manor.