A Novel of Trauma, Vengeance, and the Unbreakable Spirit of a Warrior

Dr. Kara Quiverly has spent her entire life being forged into a weapon. Raised in the shadows by a mysterious guardian known only as "Uncle Marcus," she was trained from infancy in martial arts, languages, and combat disciplines across a dozen countries-from the dojos of Okinawa to the battlefields of Israel. A Yale graduate and Harvard master's recipient, she served eight years as a Marine, leading Female Engagement Teams in Afghanistan, where she earned a Silver Star for bravery under fire.

But nothing prepared her for Cologne on New Year's Eve.

When a mob of thirty men attacks Kara and her three closest friends in the shadow of the cathedral, her military training kicks in-but even a lioness can be overwhelmed. What follows is a brutal sexual assault that shatters the academic life she has built at the University of Leicester and awakens something far more dangerous: a vigilante hunger for justice.

As Kara hunts her attackers across Europe, she uncovers Al-Mawj, a vast criminal network of former Syrian intelligence officers using human trafficking to destabilize Western nations. With help from an old Green Beret comrade, a German detective, and the three women who refuse to abandon her, Kara becomes Die Wiedergängerin-the Avenger.

Part military thriller, part meditation on trauma and recovery, Lioness of Cologne explores the cost of violence, the bonds of female friendship, and the terrifying power of a woman who refuses to be a victim.

Includes a foreword honoring the real women of the FETs and Cultural Support Teams.

Dr. Kevin P. Wallace is a retired USAF senior master sergeant, Purple Heart recipient, and combat veteran of Afghanistan.