The Griegg/Eastwood Mysteries

American Alana Eastwood's grandfather, and her only living relative, has taken ill at his home in Germany. Alana travels to be by his side, and while staying at his country cottage, she finds an unopened letter, postmarked 1945, that thrusts her into one of the most notable unsolved mysteries from postwar Germany. When people turn up dead, the local police are ill equipped to grasp the entire chain of events that the mysterious letter has put into play.

Swiss equestrian William "Zen" Griegg skyrockets to the top of the European show jumping circuit. As he sets his sights on the 2000 Olympic Games, his beloved horse Tiger is abducted en route to a competition in the United States. Zen's father, Sigmund Griegg, again teams with American Alana Eastwood to solve an international mystery that leads them from a secret tunnel in the Owl Mountains of Poland, through the art galleries of Zürich, to the Hamilton Farm Equestrian Center in Gladstone, New Jersey.