Mmh. Yes, the inner walls! I haven't exactly read any physical books on the subject, but I've been nosing around the internet a lot since starting this RP, and the account that I've seen most often repeated is that there were two siege towers, one in the north and one in the south. The outer walls were overrun in the first day, but it took another day to get past the inner walls. There were apparently two sets of walls. Which I guess is super redundant to say since I pretty much just repeated that for the third time, but yes. xD. I can do some additional research to confirm this tomorrow, but either way I think we're going to just have them flood the city in one day for simplicity's sake. xD