I thought at the beginning that Ruth, an educated author, is going to solve the puzzle and answer all of my questions about Nao. However, she is struggling with finding the answers as much if not more than us. She has connections to help her but it is difficult for her to crack the case. I do not blame her for completely forgetting that time passed between Nao writing the diary and her own present. I forgot too. Oliver is wrong to call her crazy. She is just a reader who gets immersed in what is written in front of her. Oliver is someone who lets the answers come to him. Ruth is devoted to Nao and is too impatient to not try to find answers to her questions. I kept wondering how is Oliver so calm, how does he just come across things without looking for them? Ruth is doing all the leg work; she is the one who found the diary, but Oliver is the one to suggest opening up the mysterious package it was inside. Ruth is the one constantly researching, but Oliver is the one to find something Nao’s father wrote on his newsfeed. I would say Oliver is the all-knowing character in this novel rather than Ruth, but I think that their opposing strategies of handling this exciting information is what allows them to keep moving forward in their investigation.