The Last Orphan (#8 Orphan X) | Gregg Hurwitz

Evan Smoak's thrilling new adventure will have you gripped from the very first page. As a boy, Evan Smoak was taken from his foster home and inducted into a top secret Cold War programme. Code-named Orphan X, he was trained to become a lethal weapon, then dispatched around the world to do whatever was required to keep his country safe. When Evan discovered the mission was rotten to the core, he got out using his skills to hide in plain sight while helping those who can't help themselves.