*This is a sponsored review. All opinions are 100% mine.
Paul Sirenne owns a small bookstore in Canada and is just living a normal life until his parents are brutally murdered, leaving him with one clue - H.N. His father had prepared for such tragedy and had sent Paul a note before their untimely demise. The content holds a long, hidden family secret which sends Paul to Etretat, France where a hundred year old family mystery lies within the book “The Hollow Needle” by Maurice Leblanc.
He isn’t alone on the mystery hunt as he is assisted by Leblanc’s great-granddaughter, Raymonde. Together they try to unravel the puzzle that has been unleashed before them, which takes them to the caves in Etretat’s chalk cliffs.