Immortal Tardis

When Captain Jack Harkness hears the familiar sound of the tardis, he takes off running. But when he gets to the source of the sound, he doesn't find the big blue box. instead, he finds an old diner that wasn't there previously. Confused, he watches as two Women exit the doors and walk down the street away from him. Clara and Ashildr are taking advantage of their adventures while they can, while clara is still between one heartbeat and the next, and while Ashildr still has the one person who doesn't despise the person she's become. A doctor-like adventure brings the three together in a way none of them thought possible without the two hearted Time lord.