France, 1944. Twelve-year-old Eloise's father has not come home in over a week, and she is getting worried that something might be badly wrong. When the Germans occupy Eloise's town and the Nazi Kommandant moves in, things start falling apart.
Through a chance meeting, Eloise volunteers to join the Resistance. Suspense, secrecy and danger follow her as, inspired by her favourite detective fiction books, she tries to find her father. A hidden passage behind a tapestry, a deportation list and a race against time... Will Eloise find her father?