Everyone starts off as friends right? Four and Tris. Best friends. What will happen?

Holland knew, she knew that when the car flew off Wickery Bridge that she wouldn't survive and she was right. But she is given a choice. To help who hurt her the most, or to pass into the afterlife? Should she go back and help her sister, Elena who had bullied her? Or should she leave her life behind and pass into the unknown viod? ~~~~~~~~~~~~~~~~~~~~~~~ Cover by @cleoxoptra