The Grisha Trilogy
Shadow & Bone, and Ruin & Rising By Leigh Bardugo Grishaverse Lot Of 2 PB Books
A nice touch in this novel is how it respects the reader's time.
Shadow & Bone / Grisha trilogy - Leigh Bardugo (1st edition 1st print HC set)
If you love a good mystery, this novel delivers on every level.