“First job, then, sir, to make new bars,” said Ben, promptly.

“Yes; we’ll have the carpenters in from the village directly, Ben. With these pulleys well greased, I suppose this will work.”

“Ay, sir, no doubt about that; it’s the drawbridge I’m afraid of,” said Ben.

“Let’s go up and see, then.”

Roy led the way again, and the men followed into the dark chamber above, where the old furnace stood, and in the corners on either side of the narrow window, with its hollowed-out notches for firing or using cross-bows from, were two great round chimney-like constructions built in the stone, up and down which huge weights, which depended from massive chains and passed over great rollers, had formerly been used to glide.

Ben shook his head as he put his hand upon one of the weights, which were formed of so many discs of cast lead, through the centre of which the great chain passed, a solid bar of iron being driven through a link below to keep them from sliding off.

The weights hung about breast-high; and at the slight pressure of the man’s hand began to swing to and fro in the stone place open to the chamber, but closed below where they ran down in the wall at the sides of the gate-way.

“Well, these must have been worked by hand, Ben,” said Roy. “Men must have stood here and run them down. Two of you go to the other side, and all press down together, but stand ready to jump back in case anything breaks. I don’t see how you can be hurt if you do.”

“No, sir; no one can’t be hurt, for the weights will only go down these holes with a bang.”

“Try, then. Now, all together—pull!”