The Blade of the Endless Paths

 is a task in.

Overview

 * 1) Find all four broken blade pieces in the Endless Paths of Od Nua.
 * 2) Talk to Dunstan in the Crucible Keep in First Fires.

Walkthrough
You automatically get this task when you find a piece of the Blade of the Endless Paths, an ancient weapon. You are tasked with finding the remaining pieces and restoring the weapon.

The pieces are scattered across various levels of the Endless Paths of Od Nua:

Once you have all four pieces, you need a skilled blacksmith to reforge the weapon for you. Dunstan at Crucible Keep in First Fires can do this. Bring the pieces to him, and you will get the restored weapon: The Blade of the Endless Paths, a powerful estoc.

In, the blade was destroyed when Eothas emerged from beneath the keep. Its fragments can be found in the captain's cabin of The Defiant, and it may be reforged into Blade of the Endless Paths, or alternatively combined with the Fragments of Whispers of Yenwood to create the Whispers of the Endless Paths.

Behind the scenes

 * A few unused end state ID's reveal that the Blade of the Endless Paths was to have four different upgrades that could be applied in its crafting by using items looted from powerful creatures slain in the endless paths. This would presumably grant the blade unique enchantments based on the item applied.

Bugs

 * See talk page