The war is over, but there are still lives to save. Songfic. (Warning: Attempted suicide.)
The Doctor and Jack, during the Time War.
"The Master barely recognises this man. He doesn't look out of place here, amid the scorching sand and prowling predators." [Fifth Doctor/Master]
The Doctor and the Master, losing each other through the centuries. Songfic.
Kate Lockley copes, because that's what she does. Songfic.
The Doctor left Gallifrey for a reason. Songfic.