Mark Sullivan's book, Beneath a Scarlet Sky. Based on the true life adventures of Pino Lela, a young Italian teen.
The book begins in the summer of 1943, as the allies started bombing Milan. As in England, Italian families sent their children to the countryside to save them from possible death. But Pino was not content to lead a normal teenage life. Instead, he joined the underground railroad of the Catholic Church and the Italian resistance to save Jewish lives.
http://www.militarypress.com/the-17-year-old-wwii-hero/
EXCLUSIVE: Spider-Man: Homecoming producer Amy Pascal and star Tom Holland have found another film on which to collaborate. Pascal Pictures Pascal and Rachel OConnor have acquired film rights to the Mark Sullivan novel Beneath A Scarlet Sky, with Holland attached to play the lead role. This comes on a week when the book emerged as a top seller on the Amazon lists. It is the story of a forgotten WWII hero. Pino Lella is a normal Italian teenager living an idyllic life in Italy, until bombs begin falling on Milan and word of Nazi atrocities begin to circulate. While waiting to join the fight, Lello joins an underground railroad helping Jews escape over the Alps, guiding hundreds of Jews to safety in a year. On his 18th birthday, Lello is forced to enlist with the German Army, and is immediately assigned as a personal driver to Adolf Hitlers left hand, General Hans Leyers. This fly on the wall in the upper echelons of the Third Reich positions him to be recruited by the Allies as a spy. Known to Allied Intelligence only as Observer, Lella endures the horrors of WWII and the Nazi occupation by secretly feeding intel to the Allies that was strategically important enough to turn the tides of the war. When Lellas courage falters, he is bolstered by his love for a young woman named Anna, and for the life he dreams they will one day share.
http://deadline.com/2017/08/tom-holland-amy-pascal-pino-lello-beneath-a-scarlet-sky-spiderman-homecoming-1202148294/