It’s 1939 Germany. After her Jewish mother is shot at a checkpoint, fifteen-year-old Sarah meets a mysterious man with an ambiguous accent, a suspiciously bare apartment, and a lockbox full of weapons. Teri Knight’s guest today on ‘15 with the Author’ is British resident, Matt Killeen, with his young adult debut novel, “Orphan, Monster, Spy”. He discusses his research, his process of writing, as well as how he developed the the main characters. Sarah teams up with mystery man and will become the Nazis worst nightmare…