On a Danish shore, a Vatican priest is found - hanging on a cross. Within days, the same crime is repeated ... this time in Asia and Africa. Meanwhile, deep in the legendary Catacombs under Orvieto, Italy, an archaeologist unearths a scroll dating back two thousand years, revealing secrets that could rock the foundations of Christianity. Its discovery makes him the most wanted criminal in all of Europe. But his most dangerous enemies operate outside...

1890, a man collapses near the Piazza della Santa Carita in Naples, Italy. Strangers manage to revive him, but he is unable to speak. Police carry him to the nearest hospital, where he is not admitted because he has no money or identification. Frantically trying to communicate, he scribbles notes in ancient Greek and German that would have told the world about a discovery of immense importanceif anyone had read them. . . . Reaching from the...

Hidden among the crates in a recently discovered World War II bunker are documents stamped with an elaborate black swan, the insignia of the murdered King Ludwig II. According to legend, Ludwig stockpiled a massive treasure in the years before his death, a cache of gold and jewels that would finance the construction of the largest castle of all time. But in the years since his death, no one has found any evidence that Ludwig had hidden anything. Until...