In reply to blackmountainbiker:
> We have had a sink hole in another part of the school grounds so maybe. There is a stream 20m to the side so it might be finding its way there.
Do they build all schools on swamps and abandoned mines ?
Ours seems to be similar.
" When I first came here, this was all swamp. Everyone said I was daft to build a castle on a swamp, but I built in all the same, just to show them.
It sank into the swamp.
So I built a second one. And that one sank into the swamp.
So I built a third. That burned down, fell over, and then sank into the swamp.
But the fourth one stayed up. And that’s what you’re going to get, Son, the strongest castle in all of England."