Skeleton Key (Skyrim)

The Skeleton Key is an unbreakable Lockpick obtained during the Thieves Guild quest "Blindsighted". It must be returned to the Twilight Sepulcher (Ebonmere) to complete the remaining quests for the Guild. The Skeleton Key can be used in lockpicking and is unbreakable. Therefore, while using the key to pick locks you never lose a lockpick.

Quests

 * Blindsighted
 * Darkness Returns

Functions

 * Renders the lockpicking perk Unbreakable entirely obsolete, as well as most of that skill tree while being used.
 * It does not automatically open locks for you, you still need to pick the lock.
 * Lockpicking skill only increases when a lock opens.
 * Although it can be used to open a door that requires a key during the quest (note: tested on XBox, the skeleton key behaves as a regular lockpic and does not open key locked things.), it is only used as a lockpick.
 * If the player serves time in jail, the single lockpick taken with them to jail will be the Skeleton Key.

Bugs

 * You may need at least one lockpick in you inventory as well as the Skeleton Key. Otherwise, when trying to pick a lock, the game reports that you have run out of lockpicks.
 * Once you've completed the quest and handed the key back, if you use the "additem" console command to get the key, it still breaks like a regular lockpick.
 * Not a bug: One must also add the 'Skeleton Key Perk' (10F13F) in order for it to work properly.
 * When using the Skeleton Key for other thieves guild quests (Ex: Vex, Mallory), the entrance needed to return the skeleton key gets sealed and it becomes impossible to return.