In the small hours Jack crept quietly into the larger room and got into the chimney unobserved. The bars were just above his head, and he very soon decided that with a sufficiently hard implement he could loosen the mortar about their ends. That was the doubtful matter. The knives supplied to a few of the prisoners who were given meat for their dinner were removed by the jailers after the meal, and all weapons had of course been taken from the men before they were brought into the room. But next morning Jack managed to force a long rusty nail out of one of the planks of the floor of his room; it seemed to him stout and strong enough for his purpose.
It was necessary to take the rest of the prisoners into his confidence. He got Babbage to tell them what he had in view, and as they were all Englishmen, with just as keen a longing for liberty as himself, there was no fear of their betraying him. As soon as the jailers had distributed the morning rations he slipped into the chimney. Half a dozen of the men, gathered as if casually near the fireplace, screened him from any one who might suddenly enter the room. He began to scrape away the mortar at one end of each of the bars, working as quickly as he could. Turley swept up with his hand the flakes of mortar that fell to the floor. By the evening Jack had worked so well that one bar was loosened sufficiently to be bent down when the time came. Then he got some of the men to tear off scraps of their woolen shirts, and with these he filled up the holes, so that even if the bar was tested by the sergeant there was a good chance that it would hold well enough to prevent discovery.
The scraping occupied him for two more days—one bar a day. By the time he had finished he found that the nail which had served him so well was worn to within half an inch of the head.
He determined to make an expedition up the chimney on that third evening, if circumstances proved favorable. After the evening meal of bread and water he got Ben to use his strength in bending down the bars. Then he crawled through and began to ascend. It was a tight fit. The chimney was narrow; but Jack, never stout, had grown thin on the prison fare, and he wormed his way up by the aid of projecting bricks left for the chimney-sweep; those were the days of chimney climbing. The flue was not very dirty; evidently no fires had been lighted below for a long time.
He reached the top without mishap. There was no chimney-pot. Looking cautiously out, showing as little of his head as possible, he saw the sea rippling far below in the distance, shining ruddy in the glow of the setting sun. A strong easterly breeze was blowing. To the right lay the harbor and town. To the left were two sloops and three or four praams; alongside the nearest sloop a coasting brig; then two fishing smacks. A cable's length from these lay the Fury, now apparently refitted with new main- and topmasts, and eastward of her, a little farther out, a lugger and another smack. Jack guessed that, besides the Fury, only the sloops and the praams were likely to be armed with cannon, though the lugger might carry a small gun.
The immediate surroundings of the château were out of sight, except to his left, being screened by the parapet of the flat roof some feet away from the chimney. Except at one point, where the roof of an outbuilding rose nearly to the same elevation as the part where he was perched, there was a sheer drop of fifteen feet from the top of the chimney-stack.
It was a sloping roof, and Jack made up his mind to crawl down it until he came to a chimney of the outbuilding, from which a thin spiral of smoke was rising. But he waited until the dusk had deepened before he thought it safe to emerge. Then he crept carefully down till he reached the smoking chimney. The roof there was not quite as high as the other; the drop was about five feet; and he guessed from the position that below the chimney were the servants' quarters. Two other chimneys beyond were smoking; these, he thought, must belong to the rooms occupied by the guard. The other chimneys, from which no smoke was rising, could only be reached by dropping some twelve feet and climbing an equal distance; and to do that would involve the risk of being seen or heard.
Jack placed his hand on the side of the chimney from which a thin smoke was coming. There was so little heat in the bricks that he guessed the fire below had been allowed to die down. His guess was confirmed when he put his hand in the air over the mouth of the chimney: it was scarcely warm. He resolved to climb down and find out whither the chimney led. Thin as it was, the smoke in the narrow space was rather suffocating, and he felt a certain dread lest he should cough and betray his presence. There seemed no end to the chimney, as step by step he let himself down, moving with extreme caution to avoid making any sound that could be heard below. As he approached the bottom he was relieved to find that the heat did not perceptibly increase. The fire must be almost dead. He was dislodging soot from the walls; would it be seen by the persons in the room? Perhaps if they saw it they would think it due to the strong wind. Perhaps there was nobody in the room. He heard no voices, no sound of movement, though he saw there was a light. The chimney was a good deal wider at the point he had reached, and he wondered if it led to the kitchen.
Waiting a little to make sure that the room was unoccupied, he at length ventured to slip down to the grate and peep into the room. It was empty of people. A large table stood in the middle; kitchen utensils hung from pegs on the walls; the door was ajar, and he now heard voices, proceeding evidently from an adjoining room.
On the hearth was a long iron poker. "That may prove useful," he thought; and leaping lightly down he seized it. A large chopper hung to a nail at the side of the chimney. This also he secured. Then creeping to the door, he peeped round from the level of the floor. Three men were seated at a table enjoying their supper. This was apparently the cook's room. The men were very much at their ease. A large fire of logs threw a glow upon their faces; a bottle of wine had been emptied; the smell of fried onions teased Jack's appetite. He listened to the men's conversation.