Over 1,100 years ago, an international crew of men set sail on a perilous journey. They are returning home from Tang Dynasty China with rare ceramics and gold, created by ninth-century Chinese craftsmen, desired by the rest of the world. For centuries, China has traded with the West over land, via the Silk Road. They traveled safely from the Middle East, all the way to China. But on their return voyage, they made a fateful decision. Here, off the coast of Indonesia, the reef-filled waters are so deadly that ancient sailors called the area the Treacherous Bay. Tilman Walterfang was...