Bøger i Rick and Katja serien

Rick and Katja, two soldiers, stationed in Kitzingen, Germany, are offered a unique opportunity to dive into the dark world of espionage and assassinations. As they navigate this uncharted territory, Rick and Katja discover an old dark cell that has re-emerged. As the dark cell tests their commitment to each other, their lives, and their family, a spy couple is born.