Expediente Azul is an exceptional investigative thriller that keeps you on the edge of your seat from start to finish. The intricate plot, filled with unexpected twists and turns, will leave you guessing until the very end. The characters are well-developed and relatable, adding depth to the story. The writing style is captivating, with vivid descriptions that transport you into the world of the novel. Expediente Azul is a gripping and thought-provoking read that will satisfy any lover of mystery and suspense. I highly recommend this book to anyone looking for a thrilling and engaging literary experience.