an arena that pitted warriors of various alien species and times (captured by the use of a device called the Time Scoop) against each other in gladiatorial games, although the Second Doctor tells the Brigadier that Rassilon put a stop to the games (The Five Doctors, 1983). It was rumoured that Rassilon, who lived during this time, had been deposed by Time Lords rebelling against his rule. It was also claimed Rassilon had discovered the secret of immortality and was still alive in the Tower, sleeping. The quest to reach Rassilon's tomb and the secret, blocked by a series of deadly obstacles, is referred to as "The Game of Rassilon". The Five Doctors In The Five Doctors, Lord President Borusa wants Rassilon's secret for himself, describing Rassilon's immortality as "perpetual bodily regeneration". Borusa uses the Time Scoop to transport the Doctor in the majority of his incarnations (along with various companions) to the Death Zone, using them to clear the way to the Tower. The First Doctor deduced from the riddle "This is the Game of Rassilon; to lose is to win and he who wins shall lose" that the Game was a trap to get rid of Time Lords who might be a danger to their race. Borusa is granted immortality by being transformed into a living statue. Rassilon subsequently returned the first three Doctors to their proper places in time and space and freed the Fourth Doctor from the time eddy in which he had been trapped. In that story, Rassilon (played by Richard Mathews) appears as a disembodied image floating above his own sepulchre, but the nature of this apparition is not explained. People with major involvement in the Doctor Who television series, Doctor Who spin off media and in Doctor Who Magazine, when asked in The Essential Doctor Who magazine, were divided over whether the image of Rassilon seen in The Five Doctors is actually alive or an artificial intelligence or if he had ever died prior to The Five Doctors. According to DWM editor Tom Spilsbury, it hadn't occurred to him before that he was anything other than being alive, and that "it might come down to semantics over what being alive means". Doctor Who scriptwriter Gareth Roberts believed that Rassilon is dead and the face that appears is "a clever AI". Head writer and executive producer Russell T Davies believed that Rassilon is "clearly