ISBN 978-618-82752-7-0
  The book is written in the Greek language  
 Το έκτο κλειδί
For more information about its presentation and some excerpts (in Greek language):
Go to the Greek Home page                            and then 
navigate to  Παρουσίαση βιβλίου   (Book presentation) for the 
specific book       
The sixth key
Detective story 
293 Σελίδες Α5
Available in PDF and EPUB format on websites :
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If you want the book in printed form, contact the author.