A brutal murder occurs in the village, and while local authorities are reluctant to investigate deeply, the residents believe a terrifying legend has come to life: . This "bone-breaker" is a mythical creature said to return every forty years to satisfy its bloodlust. As Valdés digs into the truth, he must decide if the killer is a supernatural beast or, more disturbingly, one of the townspeople. Key Features

(2023) is a gripping Spanish crime thriller by Blas Ruiz Grau . It serves as the fourth installment in the series featuring the prestigious police inspector Nicolás Valdés . Plot Overview

Readers on Goodreads and Casa del Libro have praised the book for its "spectacular" tension and "addictive" chapters that make it a fast-paced read. Reviewers often highlight it as the author's most mature and well-worked narrative to date. El quebrantahuesos (Nicolás Valdés 4) - Amazon.com

: Known for its dark, addictive pacing and natural dialogue, the novel blends rural mythology with modern forensic investigation. Publication : Released on March 16, 2023 , by Ediciones B .

: It follows the popular "Trilogía del No" ( No mentirás , No robarás , and No morirás ). Although part of a series, the author notes it can be read as a standalone story. Genre : Police Procedural / Psychological Thriller.

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