The Betrayer's Cup

Here's the description for The Betrayer's Cup - paste-ready:Three thousand years ago, in a workshop in Jerusalem, master artisans finished a cup of gold and silver and dark stones the color of old blood. It was made for the tables of kings. It would become something far worse. Alex Mercer is the most famous archaeologist alive - the man who pulls myths out of the sand and proves the impossible, twenty years of headlines and standing ovations and a hollow place inside where the wonder used to be.
Then a dying stranger presses a parchment into his hand and whispers a warning, and by the time Alex reaches his hotel, the man has been murdered on the steps. The parchment is a map to the Betrayer's Cup - a relic that has passed through the hands of kings, crusaders, and emperors, leaving ruin in its wake, and that a hidden brotherhood called the Society of Dominion has killed to possess for a thousand years.
From the catacombs beneath Rome to the secrets of the Holy See to the oldest streets of Jerusalem, Alex follows the cup toward a choice every guardian before him has had to make - the same choice the relic has been asking since the night it was forged. What will a man trade for the truth? And what will he trade to keep it buried?The Betrayer's Cup is a standalone novel in the Unseen Truth series - clean supernatural suspense that confronts the reader with eternity through a story, not a sermon.