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13 Days: The Pythagoras Conspiracy (Lynn Dayton Thriller #1) is available from your local Barnes & Noble. stores. It is available through local independent bookstore and can also be found online through Amazon, Barnes & Noble., and IndieBound.
2016 print edition (orange and white cover) ISBN: 978-0-9911107-1-1
2015 e-book edition (orange and white cover) ASIN: B015LI65GI
2006 print edition (red and black cover) ISBN: 978-1-933285-45-0 - New copies of this edition no longeravailable.