The Doctor's Black Scrolls

The Doctor's Black Scrolls were a supposed creation of the thirteenth incarnation of the Doctor. According to the Valeyard's allegations at the very least, the Scrolls contained the Doctor's notes on how to break the twelve-regeneration limit imposed by Rassilon. The Sixth Doctor seemed convinced that the scrolls were not real, and were invented by the Valeyard to trick the Time Lords. (AUDIO: Trial of the Valeyard)