I've read a number of Edward Marston's Railway detective novels and they suffer from an increasing similarity and repetitiveness. This set of short stories has the same issue. The investigations themselves are not all that similar. but there is a lot of padding. Victor will complain about being on a train, Colbeck will be well dressed and some local yokel will throw doubt on the ability of the detectives to do their job.
They're not bad, but they're not so good that I'd encourage someone to start. They feel churned out, I'm afraid, and that's not something I find an appealing read. ( )