Wicked Good Secrets — Janice Law

In the style of National Treasure hit films, Janice Law's fast-paced fiction thriller discloses how a wicked secret double-encrypted in an 18th century diary, intersects dramatically with 16th century Vatican art under the U.S. Capitol dome from which a gadfly journalist plunges to his death.
Law teams a former criminal court judge with an Indian chief to unravel America's most stubborn historic mystery: the two-century old disappearance of a patriotic relic.
Dangerous clues climax in a dark, isolated Washington, D.C. cemetery where human and nonhuman forces threaten the duo's investigation and their lives.