Above the cleanest skies on the planet, over the Atacama Desert, a light that should not exist flares to life one ordinary evening. Javi, a technician who reached the stars through passion rather than credentials, is among the first to see it from the Cerro Armazones observatory. What begins as an astronomical anomaly ? an unexpected star where none belongs ? soon becomes the world scientific community's best-kept and worst-managed secret.

While governments waver between disclosure and silence, conspiracy theories rush to fill the void and the space agencies withdraw one by one, a small group of scientists and technicians ? Javi, Akiko, Elara, Aris ? is left manning humanity's last window on the sky. The object they call "the Destroyer" resembles nothing ever catalogued: its passage will disturb the light, the tides, and the very stability of the planet.

When the eclipse arrives, the world must endure 72 hours of absolute darkness. Seventy-two hours in which civilization itself will be put to the test: panic, faith, power, and science will collide while the Earth withstands the embrace of an impossible physics.

72 Hours is an apocalyptic science-fiction thriller written from Latin America: a story about knowledge and its limits, about the people who watch the sky for a living ? and end up holding, from a corner of the desert, the hope of us all.