Book excerpt: A thrilling seat-of-the-pants adventure perfect for fans of Dan Brown and Scott Mariani When archaeologist Conrad Yeats discovers in his father’s tombstone the key to a centuries-old warning built into the very design of Washington, D.C., major monuments along the National Mall are astronomically aligned and are about to “lock” with the stars at a date foreseen by the Founding Fathers. Along with Serena Serghetti, a beautiful Vatican linguist with secrets of her own, Yeats explores the hidden world beneath the capital in a deadly race to save it. America has a date with destiny, and the fate of the world hangs in the balance. ‘A wonderfully honed cliff-hanger – an outrageous adventure with a wild dose of the supernatural. A thrill ride from start to finish’ Clive Cussler on Raising Atlantis ‘A devilishly clever maelstrom of history, secrets, and modern-day political intrigue’ Steve Berry, The Templar Legacy