The Blue Hour (La Hora Azul) is a 2005 novel by Peruvian novelist Alonso Cueto.

[1] It won the Premio Herralde de Novela for Spanish-language novels in 2006.

Mario Vargas Llosa described this book as "a magnificent novel that describes ten years of civil war and terrorism with lucidity and resonant fantasy".

The story concerns a successful lawyer from Lima and his search for a woman whom he discovers had been kidnapped and held as a virtual sex slave by his now deceased father, a former military officer, during the war against the Shining Path guerrilla organization in the hinterland of Peru.

[2] Although ostensibly a political thriller, it is also a story of redemption and an attempt by the protagonist to disperse some of the ghosts haunting his country after years of internal strife.