Old Soul

"Jake and Mariko meet when they both miss their flight out of Osaka and decide to share a meal. Later, drunk, Mariko tells Jake about how her twin brother died, and Jake is eerily reminded of a beloved friend’s strange death. The deceased both began behaving differently shortly before they died, after meeting an exceptionally charming woman, and both had biological oddities discovered during their autopsies. Could it have been the same woman? If so, who is she? And what is she after? If you, too, are a sucker for books that follow a central mystery through the stories of seemingly disparate but ultimately interconnected characters, this one is a must."