In 1985 in Columbia, more than 23,000 people died due to the government's failure to take seriously scientists' warnings about an imminent volcanic eruption at Nevado del Ruiz. In 1993, at Volcan Galeras, the death toll was smaller but no less tragic: despite seismic data that foretold possible disaster, an expedition of international scientists proceeded into the volcano. Two hours later, nine people were dead.

Expertly detailing the turbulent history of Colombia, Victoria Bruce links together the stories of the heroes, villains, survivors, and victims of these two events. No Apparent...