That is too cool!!!!!!!! I live really close to Brecon. There is also a very good 'ghost tour' at Llancaiach Fawr Manor near Caerphilly. The BBC even has a ghostcam
at Llancaiach Fawr. I went on the night tour a couple of years back, they only do them in the winter so it's really dark, it was a blast. Here
is an article form the BBC by someone who went on the tour.