Power's End is the third scenario of the Wizard's Isle campaign in Heroes of Might and Magic II: The Price of Loyalty. It's optional, but will give the player the Sphere of Negation to use in the last scenario. Following the clues from the obelisks, and battling the local sorceresses and warlocks, the wizards managed to find the Sphere of Negation, which would be great help when searching for the Fount of Wizardry.