But Once a Year (short story)

But Once a Year was the first short story in the Short Trips anthology Short Trips: The Ghosts of Christmas. It was written by Colin Harvey. It featured the Seventh Doctor and Ace.

Summary
to be added

Characters

 * Seventh Doctor
 * Ace

Continuity
to be added

Timeline

 * But Once a Year occurs after PDA: Relative Dementias.
 * But Once a Year occurs before DW: Ghost Light.