When Cash is asked to complete the research by a renowned historian—a man famous for his search for the Holy Grail—she can’t agree quickly enough. After all, life at her new home in Berkeley, California, has quickly become dull. Too dull for a bestselling adventurer who’s equally famous for her hands-on research...and for landing in hot water. From the moment the plane lands in Israel, things don’t go exactly as planned. For Cash, nothing ever does. Worse, her initial encounter with the Israeli professor goes horribly wrong—that is, until she discovers the papers he'd secretly hidden in her bag. And not just any papers. Clues to the location of the Cup of Christ. Now, with clue after mysterious clue falling into place, Cash soon finds herself on the trail to a legendary treasure...and on the run from those who will stop at nothing to beat her to it. And as civil war breaks out, it’s all Cash Cassidy can do to stay alive. But staying alive is something else she’s famous for. After all, she has a book to research...and the Holy Grail to find. "Epic and awesome" —J.T. Cross, bestselling author of Beneath the Deep "K.T. Tomb is a wonderful new voice in adventure fiction." —Aiden James, bestselling author of Plague of Coins