"For nearly three hundred years, the cryptic journal of Mary Dundas has kept its secrets. Now amateur codebreaker Sara Thomas travels to Paris to crack the cipher"--Page 4 of cover.
- ISBN10 1322951160
- ISBN13 9781322951164
- Publish Date 1 January 2015
- Publish Status Active
- Out of Print 19 May 2015
- Publish Country US
- Publisher Sourcebooks, Inc
- Imprint Sourcebooks Landmark
- Format eBook
- Pages 526
- Language English