<p>When Emma Brauer is blamed in the mercy killing of her father, Paul Madriani and his partner, Harry Hinds, step in to defend her. Insisting she's innocent, Emma tells Madriani about a package sent to her father. Bequeathed to him by a fellow soldier from World War II, the box contains only a key and a slip of paper. </p><p>Madriani uncovers a trail leading to a mysterious talisman--a feared Nazi relic known as the Blood Flag. Soaked in the blood of a fallen Nazi follower, it went missing at the end of the war, turning it into a historic prize sought by collectors and others with darker motives. Racing to locate the artifact before it falls into the wrong hands, Madriani is in for the fight of his life. </p>In one of his most perilous cases yet, with Emma's life on the line and his own safety in jeopardy, Madriani must uncover the truth before more people die in the struggle over the Blood Flag and its horrific legacy.