Sync (audio story)

 was the twenty-seventh story in the Torchwood - Monthly Range by Big Finish Productions. It was written by Lisa McMullin and featured Indira Varma as Suzie Costello and Annette Badland as “Margaret Blaine”.

Publisher's summary
Torchwood vs Monsters!

Margaret Blaine is the Mayor of Cardiff. She's also an alien who'll do anything to get off the planet Earth. When a spaceship crashes outside Cardiff, it seems like the answer to her prayers. But she's not the only person at crash site.

Suzie Costello works for Torchwood, but strictly to her own agenda. When a spaceship crashes outside Cardiff, it seems like the answer to her prayers. But she's not the only person at the crash site.

Bonded by an alien device, Margaret and Suzie find themselves on the run from Torchwood, the police, and six warp missiles that'll destroy them, Cardiff, and most of the Western Hemisphere.

Plot
Blon goes to investigate a crashed Elyrian spaceship in the hopes of leaving Earth in it and meets Suzie, to whom she becomes attached by the ship's control circuit bracelets before it explodes. They flee to ensure that they are not found by the emergency services or Torchwood and are unable to get further than ten feet from one another without being shocked by their bracelets, which inform them that a rescue pod is on its way to the location of the ship's pilot and that warp missiles capable of destroying Cardiff are after them. With Blon unable to use her personal teleport to get away, the two of them head towards the pilot's location.

to be completed

Cast

 * Susie Costello - Indira Varma
 * Margaret Blaine - Annette Badland
 * Pilot - Raj Ghatak

Worldbuilding

 * Blon identifies the spaceship as Elyrian.
 * Slitheen skin suits, and indeed Raxacoricovarlonpatorians within, can withstand getting run over by cars.
 * Blon first thinks that Suzie is a UFO spotter, then that she's a collector of alien artefacts, and probably a conspiracy theorist as well. She asks Suzie if she has a tin foil hat.
 * Suzie has a car.
 * When Suzie uses a laptop, Blon remarks, "How CSI." She also wonders if the computer has solitaire.
 * Blon's first hunt was in the dark.
 * Owen Harper has a key to Suzie's home. When he calls, she tells him there's left-over pasta bake in her refrigerator, which he's welcome to eat.
 * The pilot believes his ship was shot down by the Dorgon.
 * The pilot promises to tell all of Elyria of the kindness of Earth's people, promptly before his death.
 * Blon and Suzie contemplate friendship.

Continuity

 * Blon acts as the Mayor of Cardiff, while disguised as "Margaret Blaine". (TV: Boom Town)
 * The device that bonds Suzie and Blon together is similar to the device Captain Jack Harkness would use to bond the Ninth Doctor and Blon together later. (TV: Boom Town)
 * Blon has a personal teleport. (TV: Boom Town)
 * Blon excretes a poisonous gas as a defence mechanism. (TV: Boom Town)
 * Blon says her family will eat her alive if they see her. (TV: Boom Town)
 * Cardiff lies on an interdimensional rift. (TV: Boom Town et al.)
 * Blon tells Suzie about her first hunt, just as she would again later to the Ninth Doctor. (TV: Boom Town)
 * Owen has a key to Suzie's place. The two were later established to have been involved in a sexual relationship. (TV: They Keep Killing Suzie)