Percy St. John and the chronicle of secrets

An unbreakable cipher, a dead priest with expensive shoes, a hermit who has conversations with saints, an angry French girl, a guardian angel with attitude, a murderous master criminal, and a gaggle of angry demons might stop an ordinary fifteen-year-old safe-cracking genius, but not Percy St.-John.  He’s out to prove he did not steal a mysterious ancient book that may hold the key to mankind’s greatest hope and greatest danger.  E.A. Allen is a History Professor, cattle farmer, and retired C.I.A. intelligence officer. When he’s not out chasing straying cows that have no respect for fences, or tracking-down undergraduates who have no respect for assignment deadlines, he’s at his desk, writing mysteries in the great tradition of Sir Arthur Conan Doyle, Agatha Christie, and Dorothy L.

Sayers.