The Rainbow: Absolutely heartbreaking World War 2 historical fiction based on a true story

There, on the dusty floorboards, was a piece of paper, folded neatly. A newspaper article, written in German, alongside a faded picture of two men in Nazi uniforms staring at the camera. I was about to place it back in the box of forgotten things when something in the text jumped out at me. My breath caught in my chest. I know that name.

London, present day. Isla has grown up hearing her beloved grandad's stories about his life as a child in pre-war Poland and as a young soldier bravely figh...