Tom Sullivan is about to graduate from Princeton. He's intelligent and popular, but haunted by the violent death several years earlier of his father, an academic who devoted his life to studying one of the rarest, most complex and most valuable books in the world. Since its publication in 1499, "The Hypnerotomachia Poliphili" has baffled scholars who have tried to understand its many mysteries. Coded in seven languages, the text is at once a passionate love story, an intricate mathematical labyrinth, and a tale of arcane brutality. Paul Harris, Tom's room-mate, has deeply personal reasons of his own for wanting to unveil the secrets the book hides. When a long-lost diary surfaces, it seems the two friends have found the key to the labyrinth - but when a fellow researcher is murdered only hours later, they suddenly find themselves in great danger. And what they discover embedded in the text stuns them: a narrative detailing the passion of a Renaissance prince, a hidden crypt, and a secret worth dying to protect.

The Rule of Four

Mystery, Thriller & Suspense

Ian Caldwell

Thrillers & Suspense

Arrow Books

Contains 3 paperback novels:\nThe Rule of Four / Ian Caldwell & Dustin Thomason 
Equinox / Michael White 
Codex / Lev Grossman

The Conspiracy Collection: 3 vols: The Rule of Four, Codex, Equinox

Michael, White

LEV GROSSMAN

Dustin Thomason

Arrow

The Rule of Four (Paperback) by Dustin Thomason

Random House, Inc.

Endeavoring to decipher a five-hundred-year old text that weaves a mathematical labyrinth within a love story, researchers Tom Sullivan and Paul Harris obtain a diary that may contain the key to the code, but when a fellow researcher is killed, they realize that the book contains a dangerous secret. Simultaneous.

Literature & Fiction

Short Stories & Anthologies

Simon & Schuster Audio

A mysterious coded manuscript, a violent Ivy League murder, and the secrets of a Renaissance prince collide in a labyrinth of betrayal, madness, and genius.THE RULE OF FOUR
Princeton. Good Friday, 1999. On the eve of graduation, two students are a hairsbreadth from solving the mysteries of the Hypnerotomachia Poliphili. Famous for its hypnotic power over those who study it, the five-hundred-year-old Hypnerotomachia may finally reveal its secrets -- to Tom Sullivan, whose father was obsessed with the book, and Paul Harris, whose future depends on it. As the deadline looms, research has stalled -- until an ancient diary surfaces. What Tom and Paul discover inside shocks even them: proof that the location of a hidden crypt has been ciphered within the pages of the obscure Renaissance text.
Armed with this final clue, the two friends delve into the bizarre world of the Hypnerotomachia -- a world of forgotten erudition, strange sexual appetites, and terrible violence. But just as they begin to realize the magnitude of their discovery, Princeton's snowy campus is rocked: a longtime student of the book is murdered, shot dead in the hushed halls of the history department. 
A tale of timeless intrigue, dazzling scholarship, and great imaginative power, The Rule of Four is the story of a young man divided between the future's promise and the past's allure, guided only by friendship and love.

THE RUNAWAY NEW YORK TIMES BESTSELLER AT A NEW LOW PRICE!THE RULE OF FOUR
Ian Caldwell &amp; Dustin Thomason
Read by Josh Hamilton
It's Easter at Princeton and two students, Tom Sullivan and Paul Harris, are a hair's breadth from solving the mysteries of the Hypnerotomachia Poliphili -- a renowned text attributed to an Italian nobleman, a work that has baffled scholars since its publication in 1499. But as their deadline looms, research has stalled -- until a long-lost diary surfaces with a vital clue. And when a fellow researcher is murdered just hours later, Tom and Paul realize that they are not the first to glimpse the Hypnerotomachia's secrets.

Periplus Travel Guide: Sulawesi - the Celebes (Periplus Travel Guides)

Travel

Toby Alice Volkman

Asia

Periplus Editions

The Rule Of Four

"Princeton. Good Friday, 1999. On the eve of graduation, two students are a hairsbreadth from solving the mysteries of the Hypnerotomachia Poliphili, a Renaissance text that has baffled scholars for centuries. Famous for its hypnotic power over those who study it, the five-hundred-year-old Hypnerotomachia may finally reveal its secrets - to Tom Sullivan, whose father was obsessed with the book, and Paul Harris, whose future depends on it. As the deadline looms, research has stalled - until an ancient diary surfaces. What Tom and Paul discover inside shocks even them: proof that the location of a hidden crypt has been ciphered within the pages of the obscure Renaissance text." Armed with this final clue, the two friends delve into the bizarre world of the Hypnerotomachia - a world of forgotten erudition, strange sexual appetites, and terrible violence. But just as they begin to realize the magnitude of their discovery, Princeton's snowy campus is rocked: a longtime student of the book is murdered, shot dead in the hushed halls of the history department.

Biographies & Memoirs

Community & Culture

RECORDED BOOKS^

The Fifth Gospel

Simon&Schuster

See the best price to sell, buy, or rent books by Ian Caldwell. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Books by Ian Caldwell

See the best price to sell, buy, or rent books by Ian Caldwell. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

The Rule of Four

The Conspiracy Collection: 3 vols: The Rule of Four, Codex, Equinox

The Rule of Four

The Rule of Four

The Rule of Four

The Rule of Four

The Rule of Four

Periplus Travel Guide: Sulawesi - the Celebes (Periplus Travel Guides)

The Rule of Four

The Fifth Gospel