The Caves of Etretat: Book One of Four    by Matt Chatelain
Price: Free! 93100 words. Published on April 25, 2012. .
Fantastic new version. Canadian bookstore owner Paul Sirenne heads to the town of Etretat, France, on the trail of a hundred year old mystery hidden in the pages of 'The Hollow Needle', by Maurice Leblanc.Together with Leblanc's great-granddaughter, Sirenne unearths puzzles, codes and historical mysteries, exposing a secret war for control of a cave fortress in Etretat's chalk cliffs.