'''Obsidian Key''' is a [[quest item]]. It is a quest reward of {{ql|Web of Secrets}}.
The key is used to open a secret passage from [[The Chamber of Sins Level 2 (Act 7)]] to [[The Den (Act 7)]] (which led to [[The Ashen Fields]] and [[The Fortress Encampment]]). The quest log of {{ql|The Master of a Million Faces}} also reminded the player, regarding the use of this quest item.
Despite the area instance of the Chamber of Sins Level 2 always being randomly generated, the location of the secret passage is always located in the subarea that the player character encountered [[Helena]], [[Piety]] and [[Fidelitas, the Mourning]] during [[Act 2]].
Despite the area instance of the Chamber of Sins Level 2 always being randomly generated, the location of the secret passage is always located in the subarea that the player character encountered Helena, Piety and Fidelitas, the Mourning during Act 2.
Item acquisition
Obsidian Key can drop anywhere.
Quest reward
This item is given as a quest reward for the following quests:
Web of Secrets.
The Master of a Million Faces also reminded the player, regarding the use of this quest item.
