Two billion people are about to die… and they're the lucky ones.

When a man in a hospital gown jumps to his death from the Western Wall in Israel, the authorities think it's just another victim of Jerusalem Syndrome: a religious psychosis triggered by a visit to the holy city.

But when a second victim ritually disembowels himself, it's the sign of much worse to come. Thanatos — a fanatical group dedicated to the destruction of the world — is on the move again.

The only ones who can stop them are ex-Israeli military psychologist, Oxford professor, and religious expert Morgan Sierra; and Jake Timber, agent of ARKANE, the British agency tasked with investigating — and sometimes saving the world from — the supernatural.

Last time, Morgan and Jake worked together to stop Thanatos from bringing about a dark version of Pentecost. This time, Thanatos is mixing science with sacrilege — combining the Devil's Bible with mind-control technology to murder a quarter of the human race.

Together, Morgan and Jake will travel from the hallowed halls of Oxford, to the labs of a biotech company with a dark agenda, to a chapel made of human bones. They'll go anywhere, do anything, to stop Thanatos.

But they have to hurry.

Thanatos is on the rise. Apocalypse is at the gates. And the only way to save a quarter of the world is for Morgan to uncover the secrets of her past… at the cost of her own future. Death awaits in a Crypt of Bone.

New York Times and USA Today bestselling author J.F. Penn draws you deeper into darkness with Crypt of Bone, the second of the ARKANE adventures. Tap the link, grab your copy, and discover what you've been missing in this standalone adventure!

There is an alternate cover edition for this ASINhere.

The prophecy in Revelation declares that a quarter of the world must die … And now a shadowy organization has the ability to fulfill these words. Can one woman stop the abomination before it’s too late?

ISRAEL. A victim of Jerusalem Syndrome jumps to his death from the top of the Western Wall, his body smashed on the ancient stones. Another disembowels himself under the scrawled figure of the Pale Horse of the Apocalypse with the chilling words, “God told me to do it.”

Dr Morgan Sierra travels to Israel to investigate the deaths and becomes embroiled in an international conspiracy that will use cutting-edge technology to carry an ancient curse to mankind, and threaten those she loves.

Morgan joins agent Jake Timber at ARKANE, a secret government agency investigating the supernatural. Together they must hunt down the Devil’s Bible, pursued all the way by the evil forces of Thanatos.

From the catacombs of Paris to the skeletal ossuaries of Sicily and the Czech Republic, Morgan and Jake must find the Devil’s Bible and stop the curse being released into the world before one in four are destroyed in the coming holocaust. Because in just seven days, the final curse will be spoken and the prophecy will be fulfilled.

Previously published as PROPHECY.