The Castle, as this part of Newgate Prison was called, was meant for Prisoners of Quality. So it lacked certain facilities that were present in abundance in other parts of the gaol, e.g., iron wall-rings to which difficult prisoners could be fettered. The gaolers had been forced to improvise. A hundred pounds of chain had been looped round some of the window-bars and dragged along the floor to Jack and locked to his ankle-fetters. The chain was long enough that he could hobble to any part of the apartment, save the exit. For the nonce, he was seated at his table, sipping tea.