Mediscout Vessel RV79β was an ambulance ship piloted by Captain Henriat Galving. Captain Galving used it during the Last Great Time War to take wounded people to Arcking for medical attention.
Whilst returning to Arcking Station 12, the Daleks attacked the ship and killed all aboard, with the exception of Cole Jarnish. The ship went on a collision course. (AUDIO: The Good Master)