 The Doctor attempts to offer a peaceful solution but the Empress refuses, and the Doctor is then forced to remotely detonate explosive baubles used by the Santas at the walls of the base, flooding the pit with water from the Thames.The Doctor is prepared to die, but Donna urges him to escape with her, just as the Empress teleports to her ship to try to escape.However, this has weakened its defences, and the ship is destroyed by human forces.