Gift of the Gab

The Gift of the Gab was supposed to be a Quest Ability that the player could get by completing the Quest Tending the Flames for the Bard's College, in Solitude, in the Elder Scrolls V: Skyrim. In theory, it is supposed to make your Speech skill increase by 25% more, allowing you to level it up faster.

However it is only ever mentioned in Skyrim's Game Guide, as it does not appear in any way in the actual game. It supposedly does not even exist in the game's coding, so it is unknown why it was either listed in the guide, or excluded by the game.