The Ministry of Time by Javier Cercas is a thrilling exploration of a secret Spanish government agency tasked with protecting the country's history by preventing time travelers from altering the past. The novel follows a group of diverse agents who journey through different eras to safeguard key moments in history, grappling with the ethical dilemmas and consequences of meddling with time. Blending history, suspense, and philosophical questions, it explores the limits of memory, identity, and the role of history in shaping the present.