Murder mysteries in the heritage railway world

Has anyone ever written a murder mystery (novel, TV episode, whatever) set in the world of heritage railways? It sounds like something Midsomer Murders would do.

 

I'm pretty sure a Midsomer Murders plot did feature a preserved steam line many moons ago.

Not exactly central to the plot, but more than a 'bit part' IIRC.

The Watercress line rings a bell but don't quote me on that.

Edit. Just found it:

http://midsomermurders.org/ropleyloc.htm

Looks like the old memory isn't too bad after all

 

One of the 'Hetty Wainthropp Investigates' series starring Patricia Routledge featured the East Lancs Railway. IIRC it also involved clocks and checking it looks as if it was called 'How Time Flies' from series 3. Again IIRC, Tenniel Evans (best known for his role(s) in 'The Navy Lark') plays a TTI

 

You can be part of a Murder Mystery this September:

http://www.dartmouthrailriver.co.uk/days-out/steam-train-3/murder-mystery-dining-train-2

You can also visit the former home of Agatha Christie. Trains take you to Greenway Halt or a DSR bus will also take you from Churston Station to the house.

 

Also Quainton Rd has been used, found in the same index.