cosmology professor Emily Cadell believes in aliens but tries to avoid that topic. But when her best friend's son asks her, she has to answer. She tells him that she got a mysterious book 21 years ago, but it is locked and she never opened it. She gives it to him and it opens immediately. She says, "Don't ever show this to your mom and dad. All the characters might seem similar to you. Keep it a secret, something which you always wanted to know might be unfolded by this book" She adds that she hasn't read it because it was locked she just could read the first page which was just a quote," Sometimes destiny isn't fated you can change it but it can remain same forever too Aana ", I was shocked to see a person's name who was my most beloved in the quote I asked her , "how can you believe this book isn't some fiction but truth ?" she believes it because the person who told her what happened 21 years ago wouldn't lie. The book shows the title "Just 100 Light Years Away".