Winter (audio story)

 was a 2007 Big Finish Productions full-cast audio short story, featuring the Fifth Doctor and Nyssa. It was set within the last few moments of the Fifth Doctor's life, as he was battling the Master for control of his regeneration — meaning that most, but not all, of the narrative takes place in the Doctor's mind.

It was further notable for being the only Big Finish audio, as of 2012, to use the character of Kamelion in any significant way.

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

Plot
to be added

Cast

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

Continuity

 * This story posits Nyssa's marriage to a man named Lasarti, and the existence of their baby daughter, Neeka.
 * Nyssa and her husband help the Doctor into a recreation of the Zero Room in his mindscape. (DW: Castrovalva)
 * The Master uses Kamelion's connection to the Doctor's TARDIS to try and prevent the Fifth Doctor's regeneration into the Sixth Doctor. (DW: The Caves of Androzani)
 * There are mentions of the Fifth Doctor's former companions Adric, Tegan Jovanka and Turlough as well as his current companion Peri Brown.
 * The Doctor and Nyssa encounter the Watcher in his mindscape. (DW: Logopolis)
 * The Doctor says his next incarnation will be very colourful, a possible reference to the Sixth Doctor's coat. (DW: The Twin Dilemma, et. al)
 * Later in her personal timeline, Nyssa would encounter the Fourth Doctor in 3488 (PDA: Asylum) and would subsequently re-join the Fifth Doctor as one of his companions (BFA: Cobwebs). From the Doctor's perspective, both of these events had already happened.
 * Nyssa would later have two other children, whom she named after her former travelling companions Tegan Jovanka and Adric. (BFA: Heroes of Sontar)

For the the Fifth Doctor

 * This story occurs during the last few seconds of the Fifth Doctor's life as depicted in Part Four of DW: The Caves of Androzani
 * This story occurs immediately before DW: The Twin Dilemma

For Nyssa

 * This story occurs after PDA: Asylum
 * This story occurs before BFA: Cobwebs

This was the fourth and final story in a series of stories named after seasons.