That is a lovely and fascinating story. I live in Somerset and have spent many times on the Tor. It is the spritual heart of theses Isles as you say and the energy is palpable. On occasion, I've meditated there on quiet sunrises and you can feel the earth energy gently activating the Kundalini energy in your chakra system. Crystals are particularly responsive as well, and quite a few times I've charged them in the full moon or sunlight, and the energy charge they've received was very powerful indeed. The Chalice Well and Abbey are wonderful energy centres as well, as is the whole place. The Ancients and spirits are still there, and if you are open and listen....
Namaste & Bright Blessings.