num_pages: 372
description: Tom Sullivan, about to graduate from Princeton, is haunted by the violent death of his father, an academic who devoted his life to one of the rarest, most complex books in the world. Coded in seven languages, the Hypnerotomachia Poliophili, an intricate mathematical mystery and a tale of love and arcane brutality, has baffled scholars since 1499. Tom's friend Paul is similarly obsessed and when a long-lost diary surfaces they finally seem to make a breakthrough. Only hours later, a fellow researcher is murdered and the two friends suddenly find themselves in great danger. Working desperately to expose the book's secret, they slowly uncover a Renaissance tale of passion and blood, a hidden crypt and a secret worth dying to protect...
language: English
title: The Rule Of Four
titlecomplete: The Rule Of Four
characters: Patrick Sullivan (Rule of Four), Paul Harris, Richard Curry, Gil (Preston Gilmore Rankin), Francesco Colonna, Vincent Taft, Charlie Freeman, Thomas Corelli Sullivan, Bill Stein, Katie Marchand
genres: Thriller, Historical Fiction, Historical, Suspense, Romance, Mystery Thriller, Mystery, Adventure, Fiction, Books About Books
ratings_count: 36883
places: Austin, Texas, Princeton, New Jersey, Genoa, Columbus, Ohio, Florence, Tuscany, Rome
publisher: The Dial Press