CHAPTER XVII.
The Iron Bar.
Jack Sheppard's first object was to free himself from his handcuffs.
This he accomplished by holding the chain that connected them firmly between his teeth, and squeezing his fingers as closely together as possible, succeeded in drawing his wrists through the manacles.

He next twisted the heavy gyves round and round, and partly by main strength, partly by a dexterous and well-applied jerk, sapped asunder the central link by which they were attached to the padlock.

Taking off his stockings, he then drew up the basils as far as he was able, and tied the fragments of the broken chain to his legs, to prevent them from clanking, and impeding his future exertions.
Jack's former attempt to pass up the chimney, it may be remembered, was obstructed by an iron bar.

To remove this obstacle it was necessary make an extensive breach in the wall.

With the broken links of the chain, which served him in lieu of more efficient implements, he commenced operations just above the chimney-piece, and soon contrived to pick a hole in the plaster.
He found the wall, as he suspected, solidly constructed of brick and stone; and with the slight and inadequate tools which he possessed, it was a work of infinite labour and skill to get out a single brick.