She's spent the last seven hundred years hiding in plain sight. But Mouse's past is about to catch up with her.

The Devil's Bible. Once considered an eighth wonder of the world, the ancient book is shrouded in mystery. No one knows who wrote it or where it was written. Even dry-boned scholars whisper about the secrets hidden in the book: How it calls to the power-hungry. How it drives people mad. How it was written in the shadows by the hand of the devil himself.

But no one knows the truth—no one except Mouse.

She's been running from the truth at the heart of the Devil's Bible for so long that no one even knows her name anymore. She calls herself Emma Nicholas—a normal name for a normal college professor living a normal life. But all of it is a lie, and, when forces emerge that threaten to expose her, Mouse has no choice but to take flight once more.

Desperate and on the run, Mouse unexpectedly finds hope in a stranger's...