Most kids who disappear reappear.

But there are girls who vanish and never come back, girls whose clean white bones are dug up years later in vacant lots and distant forests. Carlotta Carlyle's latest case, investigating the disappearance of her adopted little sister Paolina, could change her life forever.

Did Paolina run away, or was she kidnapped? How involved is Paolina's estranged father, a notorious Colombian drug lord? Carlotta's frantic search takes her from the underbelly of Boston to the streets of Miami, and then finally to the mountains of Colombia, the heart of the world.