The Rule of Four: A Novel

“One part The Da Vinci Code, one part The Name of the Rose and one part A Separate Peace . . . a smart, swift, multitextured tale that both entertains and informs.”—San Francisco Chronicle   NEW YORK TIMES BESTSELLER   Princeton. Good Friday, 1999. On the eve of graduation, two friends 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 a vital clue is unearthed: a long-lost diary that may prove to be the key to deciphering the ancient text.