On Track (The Old Store Lost Tales: 4) by Peter Salisbury
Series: The Old Store.
Approx. 36,670 words.
Published on April 14, 2013.
After narrowly escaping the massacre suffered by Rat's biker gang, Calli seeks a route less likely to end in deadly pursuit. Still with a thirst for adventure, she joins a small party riding a train across the post-apocalyptic landscape. They are not long out of the city when they realise that being stuck on a fixed track can be even more hazardous than being on the road. Bonus story: Bad Water.