Then away we went over hills and through forests, across seas and valleys, over castles and towers, rivers and rocks, and where should we alight but at one of the gates of the daughters of Belial, at the rear of the City of Destruction, where I noticed that the three gateways of Destruction contracted into one at the back, and opened upon the same place--a murky, vaporous, pestilent place, full of noisome mists, and terrible lowering clouds.