Eventually, after a week or two of this sneaking sort of life, by watching and following the guards and taking what chances he could, he managed to find out where each dwarf was kept. He found all their twelve cells in different parts of the palace, and after a time he got to know his way about very well. What was his surprise one day to overhear some of the guards talking and to learn that there was another dwarf in prison too, in a specially deep dark place. He guessed at once, of course, that that was Thorin; and after a while he found that his guess was right. At last after many difficulties he managed to find the place when no one was about, and to have a word with the chief of the dwarves.