once held by the Doctor's people until the destruction of their home world. Sabbath was intended as a new breed of villain, time-active and less apt to pure megalomania. Sabbath believed himself to be the protector of humanity. He was first drawn to the Doctor believing him to be responsible for the arrival of the Babewyn creatures on Earth. When the Doctor fell ill, Sabbath removed the Doctor's second heart from his body which had become shrunken and blackened, apparently as a result of Gallifrey's destruction. Sabbath then implanted that heart into himself in an attempt to gain the time-travelling capability of a Time Lord. The Doctor is manipulated by Sabbath in several of his subsequent adventures, with Anachrophobia and History 101 seeing Sabbath create a situation where the Doctor will perceive a race of clock-faced creatures and an agent for a complex information-gathering system as a threat, when in reality they were only a true threat to Sabbath's associates, with the clock-faced-creatures' 'invasion' of a human colony actually being an evacuation from their destruction by Sabbath's masters in the Time Vortex and the system only a threat as it might have recorded information Sabbath's allies would prefer kept discreet. In Trading Futures, the Doctor also encountered some of Sabbath's new agents, allegedly trying to protect the timeline while seeing the Doctor as a renegade, but they lacked Sabbath's skill and were defeated by the Doctor's semi-ally Cosgrove. When the Doctor was crushed by a 30-pound theatre sandbag in the England of 1893 (Camera Obscura by Lloyd Rose), he discovered that he could not die whilst his second heart was lodged within Sabbath. Sabbath later removed the heart, severing the biodata link between the two of them. During this time, the Doctor learned that Sabbath believed that time travellers created new timelines every time they travelled, with the universe allegedly unable to exist if too many of these timelines were created. When Sabbath tried to use an event in the Siberia of 1893 (Time Zero by Justin Richards) to collapse all of reality down to a single timeline, the Doctor's interference instead caused the creation of multiple parallel universes by breaking down the barriers between parallel universes. Sabbath set about trying to save the true reality, but his actions were hindered by his comparatively limited understanding of Time causing him to misunderstand how to limit the damage (as well as