A very fine addition to the Railway Detective but not really Christmassy!

It's set in December though - 1860 - so it's festive in the background, but that's not the main part of the story. What we come across is a dead and decapitated man. Gruesome yes. And the abduction of another man - a police character no less.

A few strands of plot then to enjoy and whilst all this is going on, we get a lovely picture of the world that Brunel helped to build and shape. This part was the most fascinating for me. This was a fascinating era and it's always a joy to return to the railway mysteries.