When Amaya Salazar was twelve years old, she got lost in the forest. At dawn she was found thirty kilometers to the north. Amaya's clothes were burnt, like a medieval witch pulled from a fire, but her skin, on the contrary, was white, clean and cold, as if the girl had just emerged from the ice... Years later, Amaya, a young detective from Pamplona, is studying at the FBI Academy in Virginia . She is no longer a newbie - her skills and track record are amazing. But this is no ordinary training course. FBI agent Aloysius Dupree is already well acquainted with Amaya's skills, intuition and ability to understand evil. Now he needs her help in hunting an elusive serial killer known as the Composer, whose victims are entire families. Moreover, the maniac does his terrible deeds only in conditions of horrific natural disasters. His trail leads Dupree and Amaya to New Orleans. The clock is ticking as Katrina, the worst hurricane in the city's history, is about to hit. Amaya will have to walk a path as dark as the approaching storm. But she already knows him well...