Much akin to previous ride-along books to the Discworld series, this one focuses on the Sto Plain, a place not previously covered much by the novels or companion books, and the newly founded railway. It must be noted that this was not written by Terry Pratchett himself-or at least, not explicitly written by him- but by those delightful owners of the Discworld Emporium. One may argue that fans of something very often know more about the thing than its creator and this is a curious mix of original canon and fandom creation.

It is a delightful little cameo book that features plenty of quotes, characters and locations we know and love from the series, but also includes some new little tidbits about places rarely visited before and is a delightfully little story to fill in all the little gaps the novels can't possibly enter.

Like most of Discworld, it is heavily inspired by our own Roundworld, and takes its inspiration by the creation and boom of the railways in the Victorian age, following the tradition of traveller's handbooks. Because it isn't uniquely written by Terry (mostly, I imagine, to do with his unfortunate onset of alzheimers at the time this book was written and published) it does lack the humour we know and love from Discworld.