NEW: The Rule of Four Ian Caldwell & Dustin Thomas(9377

The International Bestseller

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 Poliphili, an intricate mathematical mystery and a tale of love and arcane brutality, has bafffled scholars since 1499.

Tom's friend Paul is similarly obsessed and when a long-lost diary surfaces they finally seem to make a breakthrough. But 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 ...

Press Reviews

'If you loved The Da Vinci Code ... dive into this' - People Magazine

'The Da Vinci Code for people with brains' - Independent

'An assured piece of fiction that weaves together the past and the present seamlessly .. I enjoyed it tremendously' - Observer

'A marvellous book with a dark Renaissance secret in its coded heart' - New York Times Book Review

'Stunning ... An extraordinary and brilliant accomplishment - a must read' - Nelson De Mille

About the Authors

Ian Caldwell was Phi Beta Kappa in History at Princeton University. Dustin Thomason won the Hoopes Prize at Harvard University. The two have been best friends since they were eight years old. They began writing The Rule of Four after graduating in 1998.

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