A set of 4 popular works by Keigo Higashino, perfect for mystery lovers. - Author: Keigo Higashino - Title: The Detective's Commandments - Title: The House Where the Mermaid Sleeps - Title: Midsummer Equation - Title: At the Dawn of the Town Thank you for viewing. These books were on my bookshelf. They have aged over time and show some sun damage and slight wear on the corners of the covers. As you can see in the photos, some pages have opened due to humidity. This is not due to water damage. Please understand that these are used books before purchasing. Please refrain from purchasing if you are concerned or are a perfectionist.