Summer of the War by Gloria Whelan

It's the summer of 1942. At her grandparents' island cottage in Michigan, 14–year–old Belle excitedly awaits the arrival of her exotic older cousin, Carolyn. Belle's expecting worldly sophistication and French style. But Carolyn brings much more than that: she carries the troubling reality of the World War that is ravaging her home. Turtle Island will never be the same again.

Set against the backdrop of breezy island cottages, this heartrending tale from National Book Award medalist Gloria Whelan is the story of a beautiful place and a special friendship–and how events thousands of miles away shaped them both.