S.I. Guzan’s first novel was about dinosaurs and delved deeply into paleontology for its background. She goes scientific again in her second book, this one. This time the sciences are immunology and epidemiology, specifically, the function of vaccines in underdeveloped countries. There is some evidence, apparently, that the DTP vaccine for youngsters has some unspecified side effects that can be fatal. There is a vaccine against measles, for example, that seems to DECREASE infant mortality. The controversy serves as the center to this murder mystery. Biology candidate Marie Skov is the protagonist as she aligns with her mentor, Kristian Storm. After years in Guinea-Bissau, studying the vaccines, Storm returns to Stockholm and is promptly found, strung up in his office. The official verdict is a suspicious “suicide,” but Skov and detective Søren Marhauge suspect it was murder. Søren has recently resigned in disgust from the police force because of horrible management and a distaste for paperwork that keeps him from investigating events such as the apparent suicide. Skov is diagnosed with breast cancer, has a mastectomy, and proceeds with her studies, albeit weakened by the disease and the effects of the surgery. The pharmaceutical industry comes under some scrutiny as well for their part in the controversy concerning the vaccines. Jesper, Marie’s physician husband, impatient with her dedication to her work rather than him and their two children, becomes distanced and, eventually, the two split, leaving Marie to start an affair with Tim Simonson of Guinea-Bissau, one of the researchers and also a disciple of Storm. Skov’s two sisters, the uptight Julie and the tattooed and riddled with punctures Lea, fight over the conduct of Frank, their father who is a drunk, and Joan, their mother, who sinks into depression and eventually dies a suspicious death herself. In the middle off all the mayhem around them, the characters find the answers to most of their questions and Marie ends up with a very unlikely boyfriend as Søren solves his own domestic problems with Anna, his wife. Gazan handles most of this rollicking group well for 7/8 of the novel but the ending seems rushed and a trifle frantic to me. I loved the scientific dispute at the heart of the novel but it does tend to get lost in the domestic travails of its secondary characters and Marie herself. A hefty read at 566 pages, scientifically-minded readers may enjoy this more than pure mystery readers, but it’s a decent yarn.