An ancient power. A desperate quest. The clock is ticking.

When psychologist and religious expert Dr. Morgan Sierra's sister and niece are kidnapped, she's thrust into a deadly race against time to find twelve ancient stones that could unleash unimaginable power. With only days until Pentecost and the kidnapper's deadline, Morgan must use all her knowledge and resources to track down the artifacts.

She's not alone in the hunt. Jake Timber, an enigmatic agent of ARKANE, a secret British agency investigating the supernatural, has his own orders to retrieve the stones at any cost. Torn between her desperate need to save her family and Jake's mission to secure the stones, lines blur as Morgan and Jake forge an uneasy partnership.

From the holy sites of Israel and the Vatican to the desert of Tunisia and the Sonoran wilderness of Arizona, Morgan and Jake face sinister forces, ancient traps, and a fanatical enemy determined to use the stones' power for their own dark purposes. Danger, betrayal and a growing attraction complicate their quest.

With Pentecost approaching and a storm of apocalyptic proportions brewing, Morgan must confront her past and unearth long-buried secrets to have any hope of saving her family and preventing global catastrophe. Emotions run high and faith is tested as the clock ticks down.

Can Morgan stop the stones from falling into the wrong hands, or will she have to choose between saving her family and saving the world?

Fast-paced and gripping, Stone of Fire is a thrilling adventure that weaves together history, archaeology, and the supernatural into a pulse-pounding race against time. Perfect for fans of Dan Brown, James Rollins, and Steve Berry, this action-packed novel will keep you turning pages late into the night.

Stone of Fire is book 1 of the ARKANE Thriller series by award-winning, New York Times and USA Today bestselling author, J.F. Penn. It can also be read as a stand-alone story.