Escape From Biggun's Playground in Heroes 4

You wake from an unusually deep sleep only to realize you are not in your own bed. In fact, you don't know where you are! But soon you discover that you are at the whim of a powerful man who calls himself Biggun the Lofty. For now, you must play the man's game, but when you catch up to him you are going to put a permanent end to his twisted entertainment.