Thats if Silbaby WAS on a chalk spur
Well I just assumed Waden's slope continued underground and they built off it. It has to be something pretty solid else it would have fallen down.

"If it is ever excavated bet you £10 that there is'nt a barrow ;)"

OK. But to give it a bit of edge and concentrate your mind, if I win I want you to send the tenner to Tarmac.