(2) 4-6 It is London 1945, and Charlie's beloved elder brother Theo returns from the war. Theo is suffering from what would now be called PTSD, and Charlie, devastated by Theo's condition, is determined to "fix" him and return the family to pre-war normal. On the Blitz-ravaged streets of London, Charlie meets up with a set of huge, powerful, and malevolent spirit wolves, invisible to all except Charlie. The wolves (with names such as Regret and Remembrance) have eaten the hearts of despairing returned soldiers; thus the "hollow chest" of the title. The creatures direct Charlie to a series of dangerous tasks involving cleverness, bravery, and self-sacrifice. With the support of a hospitalized war veteran, a kindly nurse, and a neighborhood eccentric, Charlie attempts to restore his brother's heart without endangering his own. In a lush, simile-studded narrative Sandstrom invokes metaphor, mental illness, fairy tale, quest adventure, and fantasy as she fully inhabits her troubled young character. She is less sure-footed in the domestic details of mid-century lower-middle-class English life, with terminology and tea-making needing a bit more research. The central idea, however, of the "wolves of war" and how they slink around long after armistice is deftly realized, and as relevant as ever.

Reviewer: Sarah Ellis | Horn Book Magazine Issue: September, 2021