The Worshipful and Ancient Law of Gallifrey is a book that resides in the Panopticon Archives, the Capitol, Gallifrey. It is one of the Artifacts of Rassilon, and is believed to be written entirely in Old High Gallifreyan.
Carved into the machonite plinth upon which it rests, is the inscription shown to the right, which roughly translates as 'If this book should care to roam, box its ears and send it home.'
The book was stolen by the renegade Time Lord Salyavin when he escaped from the Time Lord prison, Shada. It was recovered upon Salyavin's death by the 4th incarnation of the Doctor and President Romana, and restored to it's rightful place in the Panopticon Archives on Gallifrey.