Download or read book The Dakota Cipher written by William Dietrich and published by Harper Collins. This book was released on 2009-03-24 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ethan Gage, the hero of "Napoleon's Pyramids" and "The Rosetta Key," is back in a rollicking new tale that takes him deep into colonial America's wilderness in search of adventure and treasure.