Colditz
Daubed on the wall of the gym in 3 foot high letters at some unknown point in the school's history. Whilst being erased (quite soon after appearing, one assumes) the letters were still clearly defined, even from 300m away at the other end of the school field.

Strangely, any camp commandant had left by the time I joined, but house head 'Uncle' Beresford seemed quite willing to fill the role. Canteen food was perhaps the most obvious remnant of this hushed period of the school's history...
written by To* R*cer, approved by Susan