I would recommend Who Sings to the Dead? to all readers of literary novels, whether or not they are drawn to thrillers as a rule. I read it on my vacation, and could not put it down to see the sights! Policewoman Nina's backstory, current predicament, sense of moral justice, courage, and especially just how much she cares about her nation's victims, make this a page-turner with a social conscience. Nina's character is developed believably from the year that has passed since Sendero. Her new involvement with children brings her character to maturity. Her defensoras organization is based on an actual Peruvian organization. In addition to the new quagmire of the kidnapped child, the device of connecting the villain, through his father, with the "dirty war" of Nina's childhood, drew me in to broaden my interest.
Through his vivid descriptions of Cusco, the elaborate, traditional Semana Santa festival, and then later, of the Amazon, Tomlinson wove the tale in and out of the varied scenes, lifestyles and ethnicities of Peru. This is one of my favorite aspects of the book - all this, while the gripping action drove clearly and steadily forward.
My only two caveats: I found the brief shift to the villain's point of view distracting; and secondly, I wanted to know why Aluino, Nina's gruff young accomplice near the end of the book, had been drawn to "eavesdropping" on the specific Shining Path characters that gave Nina and readers the information needed - to conveniently set us up for the 3rd thriller in this series. These issues, however, were small, and overall did not distract from a wonderful book that is sure to be as big a hit as Sendero.