Ellen Butler is the international bestselling author of the Karina Cardinal mystery series. Her experiences working on Capitol Hill and at a medical association in Washington, D.C. inspired the Karina Cardinal series. She is also the author of the award winning WWII spy novel, The Brass Compass. Ellen became interested in WWII history when she discovered her grandfather was a cryptographer during the war. She is a member of Sister’s in Crime, International Thriller Writers, and the Office of Strategic Services Society.
