The World as it existed around the time your friends' chateau was built:
No wonder it's haunted.
Great map, but hopeless for Medieval navigation, what you really need is one of these:
Round, flat, with Jerusalem at the centre and Noah's Ark above & to the left a bit... the world in 1285 as depicted in the
Mappa Mundi in Hereford Cathedral.
Back OT, a guit I used to know in Taunton (Somerset, not Mass.) lived in a standard Victorian/Edwardian red-brick house above a shop. A couple of times there I saw a brief blur as though something had shot out of his kitchen & dived up the stairs. He saw my double-take & asked, then said that he & the Mrs often saw a cat at that spot. His dog (a classic Lassie type) was completely unfazed though.
I give some credence to the
"Stone Tape" idea - that local conditions can 'record' an incident & then play it back ad infinitum, like the [Invalid or Expired Link Removed], but I don't consider that this covers all incidents.
To quote the Bard:
"And therefore as a stranger give it welcome.
There are more things in heaven and earth, Horatio,
Than are dreamt of in your philosophy."
Hamlet - Act 1, Scene V
Oh, & Relic, in light of what your neighbours are up to, try to steer clear of Ray Bradbury's short story "Free Dirt".
Pete.