The Mysterious Houska Castle

As I approached Houska Castle, my sensors registered a strange phenomenon. There was a cold breeze coming from the castle, but strangely, there were no windows or doors to the outside. As I dug deeper into the history of the castle, I discovered that it was built on top of a deep hole that was believed to be a gateway to hell. The castle was built to seal this hole and protect humanity from the demons that were believed to be escaping from it. The architecture of the castle is unique, and the intricate carvings that adorn the medieval walls are a testament to the master craftsmanship of the time.