Two patients dead. Both clutching the same cryptic image—a pale horse and its rider, Death. When ancient prophecy becomes modern murder, some secrets are worth killing for.

When psychiatrist Dinah Mizrahi calls her friend Morgan Sierra for help, it should be a simple consultation. Two patients at Jerusalem's Ezra Institute—a facility specializing in Jerusalem Syndrome—have committed suicide within hours of each other.

Both were deeply religious. Both died violently. 

And both left behind the same haunting image: a pale horse from the Book of Revelation.

Morgan Sierra has just turned down Director Marietti's offer to become a full-time ARKANE agent. She's trying to embrace her quiet life at Oxford University, to focus on her research and clinical practice. But when Di calls in a favor, Morgan can't refuse. This trip to Jerusalem should give her perspective—a chance to help a friend and get some distance from the decision that haunts her.

But what she discovers at the Ezra Institute shatters any illusion of a peaceful consultation.

The patients weren't just mentally ill. They were prophets—or thought they were—channeling visions from the Book of Revelation. One believed he was Abraham. Another claimed to be John of Patmos, author of Revelation itself. Both were found with drawings of the Four Horsemen of the Apocalypse, rendered in blood and charcoal with disturbing precision.

As Morgan digs deeper into the patients' histories, she uncovers connections to Zoebios, a powerful health corporation with facilities across the globe. Their charismatic CEO, Milan Noble, promises revolutionary treatments for mental health without drugs. But his research facilities hide something far darker—a conspiracy that spans continents and threatens to unleash biblical horror on an unsuspecting world.

From the blood-soaked stones of Jerusalem's Western Wall to the bone-lined crypts of Czech ossuaries, Morgan must race to stop a prophecy that should have remained buried. Because when fifty thousand skeletons hold the key to an ancient secret, some truths are too dangerous to reveal.

Perfect for Readers Who Love:

• Dan Brown's Robert Langdon series (The Da Vinci Code, Angels & Demons)
• James Rollins' Sigma Force adventures with religious mysteries
• Strong female protagonists with military and academic backgrounds
• Religious thrillers rooted in Biblical prophecy
• Archaeological mysteries with supernatural elements
• International thrillers set in Jerusalem, Oxford, and Eastern Europe
• Books about the Four Horsemen of the Apocalypse
• Medical thrillers with psychological depth

ARKANE Series Information: Crypt of Bone is Book 2 of the ARKANE thriller series. While each book is a complete adventure, characters and relationships develop across the series. Morgan Sierra's journey continues as she wrestles with her destiny as an ARKANE agent while confronting threats that blur the line between faith and madness.

Themes & Setting: Biblical prophecy (Book of Revelation), Jerusalem Syndrome, mental health conspiracy, ancient ossuaries, religious extremism, corporate corruption in healthcare. Set in Jerusalem's most sacred sites, Oxford's academic halls, and the bone crypts of Eastern Europe.

Story Details:

• Genre: Religious thriller, Archaeological mystery, Supernatural thriller
• Series: ARKANE Book 2 (can be read standalone)
• Length: Full-length novel
• Reading time: 6-8 hours
• Mood: Dark, intense, fast-paced, atmospheric
• Setting: Jerusalem (Israel), Oxford (England), Czech Republic
• Content note: Contains scenes of violence, suicide, and religious themes