Author:Lisa GardnerPeriod:April 17th～22thCategory:ThrillerPages: 400pagesTotal recommends:★★★★☆Difficulty:★★★☆☆Story:★★★★☆Can't-sleep-degree：★★★★☆Romance-packed-degree:☆☆☆☆☆Adventure-packed -degree:☆☆☆☆☆Mystery-packed-degree：★★★★★(リン…