The Ghost Hunters International team arrived in Wales to investigate Nanteos mansion, a historic building that had even been linked into "Holy Grail" legend — something that was later determined by the team's research to be en entirely fictitious connection. Their guide, however, did not know this and told them how seven monks had lived in the house and were entombed in the basement. He also gave them a lot of great (verifiable) historical info on the previous owners of the mansion.

He had only had one personal experience, but it seemed a rather impressive one. While sitting alone one night at a table in the dining area he heard footsteps of someone walking behind him towards the bar. Turning around to greet the person he discovered there was no one there, and nowhere anyone who had been there might have gone (no door nearby, etc). Other people had reported seeing apparitions on the stairs and there was a specific account of one woman who had hidden her jewelry from her husband while she was sick. She lay in bed for a long time and never recovered from her illness; the apparition some have reported seeing is supposed to be this woman looking for her jewels.

Immediately, Brian and Andy start off with some terrific debunking. In the room where the footsteps had been heard Andy uses the thermal camera and can clearly see on the FLIR screen that there is a heating pipe running under the floor boards roughly along the path that the man had reported hearing someone walk. Either the pipes themselves or the expanding/contracting wood could easily have made sounds very much like someone walking.

Andy also climbed up into the attic (which was accessible only through a small crawlspace-hole in the ceiling of one of the rooms) to discover a fair amount of animal droppings. This could absolutely explain some previously unexplained noises and might even be mistaken for someone moving about in the same room or the next room over when in-fact the noises came from overhead.

Cut to Brian Harnois entering the crawlspace under the house. Did I mention that the research turned up that no monks had ever actually lived in the mansion (and had certainly not been buried there)? Brian seemed rather upset when he heard that during the evidence review; perhaps it's because the first thing he did when going through the crawlspace is announce that he saw a shadow coming right at him and that something evil was down there. Sound familiar? He did the exact same thing during the Lucedio Abbey investigation, earlier in the same episode. Can someone please fire him before not even the most tolerant skeptic can attempt to take this show seriously?

The only evidence the team got was — once again — on audio. One of the EVP's captured, I believe, on the stairs seemed to be saying, "Help me." It's somewhat clear. Also on the steps Andy reported hearing a woman weeping but nothing was apparently captured on audio. The other EVP actually seems to have been a response to a question. Donna asked if the spirit was upset because she was looking for her jewelry and there does seem to be a very faint, "yes" exactly where you would expect to hear someone answer.

Overall, a fair investigation. I'm getting really sick of EVPs though because even if they're blatantly clear there is only my trust of unknown Pilgrom crew members and the investigating team preventing me from immediately attributing the vocalizations to one of them. Then again, I suppose vague EVPs are preferable to a hunched-over guy wearing a sheet running back and forth behind a pool table.