And it came to pass that Moroni caused that his men should march forth and come upon the top of the wall, and let themselves down into that part of the city, yea, even on the west, where the Lamanites did not camp with their armies. And it came to pass that they were all let down into the city by night, by the means of their strong cords and their ladders; thus when the morning came they were all within the walls of the city.