I'll give you a short review:
Mistborn: Alloy of Law
Its about 300 pages long and very well written, as I've come to expect from Sanderson.
The setting is the same world as the original Mistborn, but 300 years later. We're on the brink of a technological revolution and people are getting electricity, goods are moved by train and cars are emerging as a replacement for carts.
We're following Waxillium Ladrian, in his quest to first overcome his life in the roughs to lead his house back in the big city. In the roughs he's been a lawman of sorts, and he's having trouble putting that life to rest.
This gets no better when a mysterious gang called the "vanishers" keep stealing precious cargo in mysterious ways.
This novel keeps much of the original mistborn-series alive and thriving, and we get to see the characters from the first trilogy as beings of myth and religion.
Having said that, Alloy of law is more of a crime/mystery novel then a fantasy-novel, and I found paralels to Conan Doyle's Sherlock Holmes novels.
Though there certainly are elements we recognise from the original Mistborn books, the world and the surroundings are not the center here, nor the characters as we got used to. The mystery and the central story are the driving force, and Sanderson only diverts from it in small sections.
All in all, i really enjoyed the book, but I suspect you'll have to like crime/mystery to be sold on it. (I do)
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