Ghost Town
Determined to get away from it all after the sarin gas threat, Sarah and Josh take a vacation to Romania to visit one of Sarah’s journalism mentors. But trouble seems to follow - with an international peace conference taking place nearby, and the delegate from America and his wife staying with Sarah’s friend, the visit is hardly normal. On the first night, Sarah sees something that she can only describe as a ghost; the next night, a sighting of something similar frightens the American delegate’s wife literally to death. Sarah and Josh set up recording devices to capture the next appearance of the “apparitions,” but even though there is another sighting, the evidence doesn’t show up on tape - and the enigmatic butler of the house turns up dead. Sarah realizes that someone is manufacturing the “ghosts” to disrupt the peace talks, but that realization, and her hunch about who is responsible, may make her the next target.
written by Rupert Laight
directed by Gary Russell
music by David DarlingtonCast: Elisabeth Sladen (Sarah Jane Smith), Jeremy James (Josh Townsend), Ingrid Evans (Yolande), Brian Miller (Abbotly), Robert Jezek (Jack McElroy), Elizabeth Faulkner (Candice McElroy), Mark Donovan (Professor Vodanski)
Notes: For the first time in the Sarah Jane Smith audio series, the 1981 one-off Doctor Who TV spinoff K-9 & Company is referenced as part of the continuity. Between Test Of Nerve and this story, Sarah has sold off her late Aunt Lavinia’s Moreton-Harwood residence; Brendan hasn’t been living there as he’s moved on to a career in Silicon Valley.
At her home, Sarah receives a package - a live rat in a glass cage, with a note attached. When Josh removes the note from the cage, a mechanism seals the cage completely and fills it with nerve gas, killing the rat. If that isn’t ominous enough, the note promises that the same will happen to all of London unless Sarah “finds the truth” in 24 hours. Sarah next gets a visit from James Carver, a man whose name has been in the news recently after being detained and questioned by police following a scuffle with a member of Parliament. Carver, seeming nervous and unstable, claims to have gotten hold of enough sarin gas to kill the entire population of London - and even shows real proof. He claims that he’ll release it in the London underground during rush hour if certain demands aren’t met by six in the morning. Natalie insists that Sarah call the police, but Sarah tries to make use of her contact within the C19 agency instead; shortly after confirming that Carver is dangerous and is in possession of the sarin capsules, Sarah’s contact is found dead and Sarah herself is framed for the murder. And while she’s in police custody, answering questions, Sarah’s losing precious time …and so is London.
The latest in a series of disappearances of young men hits close to home for Sarah’s friends, and she decides to investigate the matter herself. With Josh in tow, Sarah finds that the missing men have become unwilling contributors to an experimental anti-aging serum which can only be replenished with the blood of living donors. At the center of this web of intrigue lies the eccentric Will Butley, determined to keep himself alive even at the expense of others - but even Sarah can’t begin to guess at how long his obscene experiments have been going on. And then Josh becomes his next “donor”… 
Years after her travels in the TARDIS ended, Sarah Jane Smith has resumed her job as an investigative journalist, though her stint with TV network Planet 3 ended in disgrace after one of her exposes was proven to be based on false evidence. Fired by her network, Sarah’s troubles didn’t end there, as her identity, bank account and her employability were systematically erased. With the help of Natalie, her former Planet 3 producer, Sarah is still on the trail of a big story, but now she’s trying to find out who tainted her last big story - and her paranoia is growing. The trail leads to a bank where Sarah assumes a new identity and takes a job - but her cover is blown by the police when the bank is robbed. Sarah receives a message from her friend Ellie, an environmental activist, to meet her the next day at an isolated village, and Ellie’s friend Josh insists on accompanying Sarah, especially after she goes to meet with the bank manager again and finds him dead - with a note on his desk also referring to the village where Sarah is supposed to meet Ellie. Sarah and Josh go to retrieve her car, which she’s taken to keeping hidden in a garage away from her home for security reasons, only to see a man break into it and blow it up. They decide at this point that public transport might be a safer way to get there, and when they do arrive, they find Ellie’s environmentalist group preparing to protest a French biochemical company’s gradual plan to take over the entire village. Only some of Ellie’s environmentalist colleagues have gone missing, and the corpses have begun piling up near the village’s legendary healing well…