Disclaimer: I am overly sentimental and the concept of this book ties together an author I enjoy and a topic that is dear to my heart. So I really wanted to love this book.
But I didn't.
It fell flat for me. The characters didn't seem themselves nor did the author's writing style. Given Mr. Pratchett's Alzheimer's, it doesn't come as a surprise, but saddening none the less.
Raising Steam introduces the first locomotive to Discworld. Young Dick Simnel, engineer, gains the financial support of Sir Harry King to bring the city of Ankh-Morpork into the Age of Steam. Lord Vetinari conscripts Moist von Lipwig to represent the government in this endeavor.
Of course nothing is as simple as building a railway across Discworld. Opposition is found in a group of Dwarves who seek to overthrow their King. This drives the plot, but in my option, not all that well. Check Availability