"Besides," Jack went on, "we do not know where this staircase leads. But no doubt it goes up into the house, and when we got to the top someone would see us at once; and even if we broke through there would be such a chase we should never get away, and anyhow could not pass through the town down to the port and steal a boat. No, Jim, I don't think it is the least use in the world trying to escape that way. If we could dig through the wall and make our way out at night, and get quietly down among the sand-hills by the shore, we might manage to get hold of a boat and row out to the ships; but I do not see that there is any chance of our being able to do that when we haven't got as much as a knife among us."