A highly suspenseful detective novel Gloriana and Minerba are two friends, one of whom is killed and the other is accused of the crime, and since the accused's grandmother, one of the richest women in Argentina, is willing to do anything to save her granddaughter. Detectives Francisco Juanez and Manuela Bellari, in the Criminal Investigation Division, which Juanez heads, are investigating the case. But nothing is proven and the accused and the number one suspect in the case are released. Crystal Darkness is the first novel by its author, Florencia, in her transition from police journalism to literature in an interesting language and ingenuity in drawing successive events. The story takes place between Buenos Aires and Ecuador, in an intense and disturbing plot that becomes more complex with the passing of the seasons.