Romeo Blue by Phoebe Stone (author) (US edition)

Romance, wartime secrets, Nazi intrigue, spy games. This gripping sequel to The Romeo and Juliet Code has love and danger aplenty. It’s been a year since Flissy’s parents dropped her off in Bottlebay, Maine; trying to keep her safe while they faced the guns and bombs of wartime Europe. Meanwhile, Flissy has grown to love her new life – and especially Derek, the boy her uncle and aunt have adopted. Then a man claiming to be Derek’s father arrives, asking all sorts of strange questions. Why does Flissy overhear talk in German late at night? Why does a Nazi uniform hang in her uncle’s wardrobe? Has Derek’s new father come to take him away – or is something even more sinister happening in Bottlebay?