Cover of The Rule of Four

The Rule of Four

First published 2004

About the book

“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.”

Read the full description

“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.”—BOOK JACKET.

Subjects

Catalogue record

Author
Ian Caldwell, Dustin Thomason
Statement
The Rule of Four / Ian Caldwell, Dustin Thomason.

Book facts

Pages
372
ISBN
978-0-440-33495-8
4 more ISBNs
  • 978-0-440-29640-9
  • 978-0-440-24135-5
  • 978-0-7862-6799-6
  • 978-1-84505-734-3
Records
Open Library

Catalogue data checked 3 October 2026