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The Rule of Four
Descriptions of each edition are found in brief where available. Click details & prices to get more information on a book or to find the best prices for the title.
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Hardcover
Book cover for 9780385337113
 
Large print edition from Thorndike Pr (August 23, 2004)
9780786267996 | details & prices | 621 pages | 5.75 × 8.50 × 1.25 in. | 1.60 lbs | List price $30.95
from Dial Pr (May 1, 2004)
9780385337113 | details & prices | 372 pages | 6.50 × 9.75 × 1.75 in. | 1.45 lbs | List price $24.00
About: Trying to decipher an ancient text that weaves a mathematical labyrinth within a love story, two researchers 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.
Paperback
Book cover for 9780099557487 Book cover for 9780385337120 Book cover for 9780440241355
 
from Gardners Books (June 6, 2013)
9780099557487 | details & prices | 544 pages | List price $14.00
from Dial Pr (August 21, 2012)
9780385337120 | details & prices | 386 pages | 7.00 × 5.00 × 0.75 in. | 0.76 lbs | List price $16.00
Reprint edition from Dell Pub Co (June 28, 2005)
9780440241355 | details & prices | 448 pages | 4.75 × 7.00 × 1.25 in. | 0.50 lbs | List price $7.99
About: Trying to decipher an ancient text that weaves a mathematical labyrinth within a love story, two researchers 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.
CD/Spoken Word
Book cover for 9780743529730 Book cover for 9780743540292 Book cover for 9780743552127
 
With Josh Hamilton (other contributor) | Abridged edition from Encore Editions (May 1, 2006)
9780743552127 | details & prices | 5.00 × 6.50 × 0.75 in. | 0.35 lbs | List price $14.95
About: 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.
With Jeff Woodman (other contributor) | Unabridged edition from Simon & Schuster Audioworks (September 13, 2004)
9780743540292 | details & prices | 5.00 × 5.75 × 1.25 in. | 0.65 lbs | List price $49.95
About: 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.
With Josh Hamilton (other contributor) | Abridged edition from Simon & Schuster Audioworks (May 1, 2004)
9780743529730 | details & prices | 5.00 × 5.75 × 1.00 in. | 0.50 lbs | List price $30.00
About: 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.
Cassette/Spoken Word
Book cover for 9780743529723 Book cover for 9780743540285
 
With Jeff Woodman (other contributor) | Unabridged edition from Simon & Schuster Audioworks (September 1, 2004)
9780743540285 | details & prices | 4.00 × 6.75 × 2.75 in. | 0.70 lbs | List price $49.95
About: 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.
With Josh Hamilton (other contributor) | Abridged edition from Simon & Schuster Audioworks (April 1, 2004)
9780743529723 | details & prices | 4.00 × 7.00 × 1.00 in. | 0.35 lbs | List price $26.00
About: 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.
Prebinding
Book cover for 9780606268295 Book cover for 9781439565759
 
from Turtleback Books (August 21, 2012)
9780606268295 | details & prices | List price $28.20
Reprint edition from Paw Prints (October 20, 2008)
9781439565759 | details & prices | 448 pages | List price $16.99
About: An ivy league murder, a mysterious coded manuscript, and the secrets of a Renaissance prince collide memorably in The Rule of Four—a brilliant work of fiction that weaves together suspense and scholarship, high art and unimaginable treachery.