The Christmas Inversion (short story)

was the third short story in Twelve Doctors of Christmas, featuring the Third Doctor.
== Summary ==
Answering a distress call from 21st century London, the Doctor, Jo Grant and Captain Yates encounter a remarkable woman named Jackie Tyler, convinced that the Doctor has changed "again" and that Jo is her daughter Rose! As they survive malicious holiday decorations, attempt to assist the contemporary UNIT personnel and discover the Master's latest scheme gone awry, Jo wonders if her absence from the future Doctor's life is a ghost of her Christmas future...
== Characters ==
* Third Doctor
* Jo Grant
* Captain Mike Yates
* Tenth Doctor
* Jackie Tyler
* Harriet Jones
* 
== Worldbuilding ==
* The Third Doctor is unfamiliar with the Slitheen.
== Notes ==
* This story essentially takes place at the same time as The Christmas Invasion, with the Third Doctor arriving in Jackie's flat after the Tenth Doctor's TARDIS has been taken up to the Sycorax ship and leaving after his future self has been returned to London.
* It's explained that the Tenth Doctor was able to complete his regeneration and stabilise his new incarnation by siphoning regenerative energy off of the Third Doctor, the latter referring to it as "energy osmosis".
* The Doctor claims to have "never known a Rose". According to PROSE: Roses, his granddaughter was originally named Arkytior, "rose" in High Gallifreyan.
== Continuity ==
* Jackie mentions the Slitheen, the pig crashing into Big Ben, and Harriet Jones helping save the world. (TV: Aliens of London, World War Three)
* The Doctor mentions the "Omega business". (TV: The Three Doctors)
* Jackie believes that the Doctor has regenerated again, and, when meeting Jo and Yates, she thinks that Rose and Mickey have also changed their appearance. (TV: The Christmas Invasion)
* UNIT's secret HQ is no longer located inside a building marked with a sign which reads "UNIT Headquarters," (TV: The Five Doctors) and is instead in a base under the Tower of London. (TV: The Power of Three)
* Jackie recalls that Rose went back to "certain death" to save the Ninth Doctor. (TV: The Parting of the Ways)
* After hearing Jackie talk about Britain's Golden Age, Mike Yates remarks that a golden age "sounds good". (TV: Invasion of the Dinosaurs)
* Jackie recalls Rose telling her that she had met her father before his death. (TV: Father's Day, The Parting of the Ways)
* When Mike Yates mentions UNIT's name as "United Nations Intelligence Taskforce", the Tower guard notes that its now "Unified Intelligence [Taskforce]." This same discrepancy was noted in a conversation between Jack Harkness and John Benton. (COMIC: Official Secrets)
* The name central control console was previously used in PROSE: Memorandum.
Category:Third Doctor short stories
Category:Twelve Doctors of Christmas short stories
Category:Stories set in 2006
Category:Stories set in London
Category:The Master (Terror of the Autons) short stories
Category:Tenth Doctor short stories
Category:Sycorax short stories
Category:Multi-Doctor short stories