Cat Clarke 
Undone [EPUB ebook] 

Real, compulsive and intense: Cat Clarke is the queen of emotional suspense. For fans of Paula Hawkins, Gillian Flynn, Megan Abbott and Jandy Nelson.Jem Halliday is in love with her gay best friend. Not exactly ideal, but she’s learning to live with it. Then the unspeakable happens. Kai is outed online … and he kills himself. Jem knows nothing she can say or do will bring him back. But she wants to know who was responsible. And she wants to take them down. A searing story of love, revenge and betrayal from a bestselling author.