On the left there were doors communicating with the King's Bench Ward and the Stone Ward, two large holds on the Master Debtors' side.

But Jack was too well versed in the geography of the place to attempt either of them.

Indeed, if he had been ignorant of it, the sound of voices which he could faintly distinguish, would have served as a caution to him.
Hurrying on, his progress was soon checked by a strong door, several inches in thickness, and nearly as wide as the passage.

Running his hand carefully over it in search of the lock, he perceived to his dismay that it was fastened on the other side.

After several vain attempts to burst it open, he resolved, as a last alternative, to break through the wall in the part nearest to the lock.