That Burning Summer -- Paperback / softback

Sixteen-year-old Peggy has been putting on a brave face since the fall of France, but now the enemy is overhead, and the rules are changing all the time. Staying on the right side of the law proves harder than she expects when a plane crash-lands in the Marsh: it's Peggy who finds its pathetic, broken pilot; and a young Polish man, Henryk.