A World Without You by Beth Revis
Release Date: 19.07.16
At Berkshire, Bo falls in love with Sofia, a quiet girl with a tragic past and the superpower of invisibility. Sofia helps Bo open up in a way he never has before. In turn, Bo provides comfort to Sofia, who lost her mother and two sisters at a very young age.
But even the strength of their love isn’t enough to help Sofia escape her deep depression. After she commits suicide, Bo is convinced that she’s not actually dead. He believes that she’s stuck somewhere in time — that he somehow left her in the past, and now it’s his job to save her.