Tarn grapples with the loss of her brother at Dunkirk as she faces the threat of Nazi invasion in the Cumbrian countryside in this gripping wartime tale from Tom Palmer. July 1940 - as Tarn struggles to come to terms with the loss of her beloved brother in the chaos of the British retreat at Dunkirk, she and her friends scour the hills around their Lake District home, watching for any signs of the long-dreaded Nazi invasion. But...