31 YA Mystery Books that are Absolute Must-Reads

Set five years after the shocking murder of a young woman named Summer, "Broken Things" ($11) by Lauren Oliver focuses on the teen's two best friends — Mia and Brynn — who everyone believes killed her due to their obsession with a book called "The Way into Lovelorn." But Mia and Brynn know the truth: Neither of them murdered their best friend, and as the anniversary of Summer's death approaches they discover a clue that could exonerate them once and for all.