https://www.google.co.uk/maps/place/51%C2%B038'15.8%22N+2%C2%B021'09.6%22W/@51.6377286,-2.3537625,213m/data=!3m2!1e3!4b1!4m5!3m4!1s0x0:0x0!8m2!3d51.6377286!4d-2.3526682

and what about the other pair of coordinates?

"we drain your light" according to kate holliday (in the 'white triangle' room to the right of the pic below)...I remember now...not a complicated metaphor to work out....

and where had the 'current' bun, been? percy had wanted to know....