Invisible Murder

In this thrilling follow-up to Kaaberb%C3%B8l and Friis's 2011 debut, The Boy in the Suitcase, Copenhagen Red Cross nurse Nina Borg sets out to assist sick children among the Hungarian Roma living in nearby Valby, even though she has promised her husband to curtail such activities because they interfere with her caring for their two children. Elsewhere, a Hungarian law student searches for his Roma half-brother, a quest that eventually leads him to Denmark and the camp in Valby, all while being tracked by Copenhagen's counterterrorism unit. Nina, with her habit of becoming enmeshed in the affairs of those less fortunate, gets caught in the middle of an explosive situation when it turns out that a substance making the Valby residents sick is not only radioactive but also on the move. Once again, Kaaberb%C3%B8l and Friis balance just the right amount of action with characterization of their flawed but empathetic heroine. 10-city author tour. (Oct.)