Monica Hesse

"In 1943 Nazi-occupied Amsterdam, teenage Hanneke--a 'finder' of black market goods--is tasked with finding a Jewish girl a customer had been hiding, who has seemingly vanished into thin air, and is pulled into a web of resistance activities and secrets as she attempts to solve the mystery and save the missing girl"--

Teens Haruko, a Japanese American, and Margot, a German American, form a life-changing friendship as everything around them starts falling apart in the Crystal City family internment camp during World War II.