All of Us Sinners (Doctor Who)

The Time War was something written throughout history, the blood stains soiling time like bandages. She sang about it throughout the Medusa Cascade, warning of the time when the Time Lords would fall.

The Doctor thought he was alone. He was alone. The last Time Lord. When the walls of time weaken, he finds a single survivor, trapped along his timeline by the constraints of her escape.

This is the story of the Doctor and his Saint, or how an ill-fated Prophet leads a sinner to salvation.

(Doctors 9-12/Original Time Lord Character)
(Cross-posted on AO3 as Sinners & Saints)