I love the idea of Historic England having a special department for strange goings on. It makes sense and is a little less obvious than the National Trust. I imagine they deal with a lot of hauntings, either group.
That adverse camber is a killer, but Devon certainly is rich with folklore. My favourite is the washer women of Dartmoor. I wanted to provide a link but I can't fine one, I read it in a book of Devon folklore.
The story is that sometimes lone travellers abroad on Dartmoor after the sun has set come across three washer women working by a stream. They are folding their sheets and will ask the traveller to help. If they refuse, politely, they may go about their business. If they agree to help they have to mirror what the women do. The process of folding the sheets becomes fiendishly complicated. If they succeed and the sheets are folded the washer women will grant their helper a wish. If they get out of sync they get folded up in the sheets and are never seen again.