Note 587 — Chapter VII · THE CASTLES OF THE NORMANS IN ENGLAND (continued 2)
Reading edition
Drake’s account of the siege says that there was a hollow place between Piper’s Tower and the Round Tower all the way down to the well; the gentlemen and soldiers all fell to carrying earth and rubbish, and so filled up the place in a little space. Quoted in Holmes’ Manual of Pontefract Castle.