twelve
o'clock
It was the shriek of a large number of steam whistles , and seemed to come up from every side . `` Is that for the fog ? '' asked Bruce . `` O , no , '' said Bart ; `` those are the saw-mills whistling for twelve o'clock . '' The boys had already completed their preparations for landing , and had changed their eccentric clothing for apparel which was more suited to making their appearance in society . Bart had insisted that they should go to his house , and wait until they might decide what to do ; and the boys had accepted his hospitable invitation . They stepped on shore full of hope , not doubting that they would hear news of Tom .