Master from Skaro to Gallifrey. This proved to be a huge mistake; despite having a limited physical form, the Master was able to take control of the Doctor's TARDIS and cause it to land in 1999 San Francisco, where the Doctor was shot in the middle of a gang shoot-out. He was taken to a hospital, where surgeons removed the bullets but mistook the Doctor's double heartbeat for fibrillation; their attempt to save his life instead caused the Doctor to "die" with one last shocking scream. He is thus the only Doctor to have died at the (unwitting) hand of one of his own companions. Perhaps due to the anaesthesia, the Doctor did not regenerate immediately after death, unlike all previous occasions; he finally did so several hours later, while lying in the hospital's morgue. An image of an aged Seventh Doctor appeared in a transitional quasi-afterlife to the Thirteenth Doctor as well as being mimicked in an AI hologram programmed by the Doctor herself (The Power of the Doctor). In Time and the Rani (1987), the Seventh Doctor gives his age soon after his regeneration as "exactly" 953 years, indicating that some two centuries of subjective time has passed since his fourth incarnation was revealed to be 756 in The Ribos Operation (1978), and approximately half a century since Revelation of the Daleks (1985) in which the Sixth Doctor stated he was 900 years old. The later revival of the series, however, contradicts earlier episodes by establishing the Ninth Doctor as being 900 years old in "Aliens of London" (2005). Personality The Seventh Doctor has the most profound change in attitude of any of the Doctor's incarnations, beginning as someone bumbling (to the extent of putting himself in danger but not at the cost of his overall great intelligence and benevolent intentions) and progressing into a driven, dark gamemaster whose plans to defeat his adversaries, both old and new, would play out across space and time. He generally displayed an affable, curious, knowledgeable, easygoing, excitable, and charming air. However, as he began to choose his battles and keep a tighter grip on his secrets – from his plans to his very identity – he also presented more serious, contemplative, secretive, wistful, and manipulative sides with undercurrents of mischief and authority (constantly giving the impression that there was more to him than met the eye). As something of a showman,