“But she and Rick had . . . something bigger. She wasn’t sure what it was. All she knew was that when he came to her in the morning, she had no choice but to twirl around and chase her tail before sitting down in front of him.” Cracker is a German shepherd, owned by the US Army, who sniffs out booby traps in Vietnam with her handler, Rick. Kadohata has deftly intertwined a classic dog story with that of a soldier’s by writing from both points of view, remarkably well, though her talents with realistic voice and immediacy of setting that garnered her the Newbery Medal are put to the test here. Rick’s colloquialisms are essential to his character, but sometimes fall flat on the page: “The more Rick trained, the more he started to feel that Cracker was kind of like reading his mind or something.” The narrative is slow to engage, starting with Cracker’s previous owner, and plenty of saccharine. There’s not much information on the war, nor do Rick’s internal dilemmas reach beyond the surface. Despite thin spots, the story succeeds on the strength of its characters, their struggles and their relationship, reaching a readership that doesn’t get enough quality writing in this genre. (Fiction. 9-13)