Stone Castle Escape

There is a legend that in the medieval abandoned castle in southern Germany usual evil spirits. You as a researcher, wanted to refute all these stories and began to search for the truth. Having found a strange artifact you tired went to sleep and woke up, you were in the middle of the castle. Around heard footsteps and chains rattle the walls. You need more to get out of this place, because the artifact could awaken an ancient evil, a meeting which does not promise you anything good.