About midnight
`` The committee holds possession of the jail ; all are safe , '' replied Dows . With this assurance the crowd was completely satisfied , as it proved by dispersing quietly and at once . Of the three thousand enrolled men , three hundred were retained under arms at headquarters ; a hundred surrounded and watched the jail ; the rest were dismissed . About midnight a dense fog descended on the city . The streets were deserted . But on the roofs of the jail and the adjacent buildings indistinct figures stalked to and fro in the misty moonlight . All next day , which was Monday , headquarters remained inscrutable .