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Running from the King of Miscarcand.
If you choose to run from the King of Miscarcand and the Zombie Guardians, they will continue to chase you throughout Cyrodiil. You cannot fast-travel, wait, or sleep, as the game claims that there are enemies nearby, even though you may be miles from Miscarcand or invisible. One way to stop this bug is to travel to any city and commit a crime. Pay your fine and you will end up outside the city´s castle, where you´ll be met by the King of Miscarcand and his two Zombie Guardians. The fight will be a lot easier because the guards will join in the fight. Once these enemies are dead, the game should return to normal. Entering an Oblivion Gate will also accomplish a similar effect.