Record of Rassilon
From Tardis Wiki, the free Doctor Who reference
The Record of Rassilon was a document written by Rassilon during the Dark Times. It contained information on the war with the Great Vampires and instructions to kill the King Vampire even at the cost of one's own life. It was installed into all Type 40 time-vessels. A copy of it resided in the Bureau of Ancient Records. (DW: State of Decay)
