During the Path of the Thief, a statue of Clavicus Vile, with a sword called Umbra, will be in an alcove. Activating the sword will teleport you to a plane of Oblivion that resembles an arena. After defeating the two enemies in the arena, go up to the forge. Umbra is in the forge. When you take Umbra, a portal back to the statue will open.
This weapon is now called False Umbra in the V5 Legacy patch for Gray Cowl of Nocturnal, for immersion reasons with Odyssey coming in the future.
- Requires The Gray Cowl of Nocturnal.
- This is a different version of Umbra from the one added by Legacy of the Dragonborn itself. For the Legacy version, see Umbra. The Legacy version is removed from version 5 and above.