For US$350, participants in the Hidden Kingdom experience can become part of a real-live adventure novel. From the website:
The Hidden Kingdom isn't just a camping trip. When you visit the town of Darkhold, you enter a world beyond your imagination. Gypsies, knights, fair ladies, and peasants are eagerly waiting to tell you their stories, and make you a part of their history. You don't just sit on the sidelines, you are an active part of the tale that unfolds around you. The ending is unwritten...it's up to you!