Alan Vanneman extends the boundaries of the Sherlock Holmes canon in this crafty new novel featuring the world’s greatest literary detective.

A late-night summons takes Holmes and Dr. Watson from the cozy Victorian comforts of Baker Street on to the Orient Express, where they travel the breadth of Europe to exotic Constantinople. But danger’s afoot, for death, too, is traveling first class.

As Holmes strives to unmask his most cunning, ruthless, and elusive foe, he is transported into a world of high finance rife with intrigue and crime. With a cast of characters that includes historical greats like Winston Churchill as well as a beggar girl whom Watson adopts, Holmes follows a trail that leads ultimately and unpredictably to the fabled and fabulous lost Hapsburg Tiara.