Winter (audio story)

 was a 2007 Big Finish full-cast audio short story, featuring the fifth Doctor and Nyssa. It was notable for being set within the last few moments of the fifth Doctor's life, as he was battling The Master for control of his regeneration.

Publisher's summary
Many years after their travels together have ended, the two friends meet again in the strangest of circumstances.

Winter

 * The Doctor - Peter Davison
 * Nyssa - Sarah Sutton
 * Lasarti - Jeremy James
 * Anima - Sunny Ormonde

Continuity

 * This story posits Nyssa's marriage a man named Lasarti, and the existence of their baby daughter, Neeka.

Timeline
This story firmly occurs in the last few seconds of the fifth Doctor's life, during episode 4 of DW: The Caves of Androzani.