John G. Edgar, The Boy Crusaders: A Story of the Days of Louis IX
“ Naturally enough, a capital so wealthy was rather tempting to men bent on conquest. But Acre had the advantage of being strongly fortified. On the [211] land side it was surrounded by a double wall, with towers and battlements, and a broad and deep ditch, which prevented access to its ramparts, and towards the sea by a fortress at the entrance of the harbour, by the castle of the Templars, and by a stronghold known as 'The King's Tower;' and on the whole, the fortifications were such that no foe, not even such as Bibars Bendocdar, could have calculated on finding the place an easy prey. ”
