Grandma's Box

Getting too close to grandma was dangerous. Hanna's parents told her and she didn't listen. Her parents were boring. They disapproved of everything she did: discos, nightclubs, karaoke bars. They even objected to photos of her skinny-dipping with friends in mountain pools. She posted them on Facebook and they were horrified their friends might see them.They couldn't understand that she had a serious job as a marine scientist and worked in remote locations. She had a right to let her hair down when she went to Tokyo or some other big city.But, they were right about grandma. One day, she gave Hanna a box of old papers and said they told the story of her life. The papers stretched back to a time young people knew little about and old people preferred to forget. Hanna investigated them and her life was changed forever.One day, she was researching the fishing industry on Japan's south coast. The next, she was trapped in a vicious struggle between the Japanese and Korean mafias. A homicidal maniac was killing elderly ladies and grandma's box was somehow involved.