Deadly (Pretty Little Liars #14)

The four high school seniors, Aria, Emily, Hanna, and Spencer, have committed unforgivable acts that could land them in jail if exposed. Their relentless stalker, known only as A, holds all their secrets and uses them to torment the girls. But now, A has upped the ante and the girls find themselves under intense scrutiny. As the pieces of A's plan fall into place, the once seemingly perfect lives of these pretty little liars from Rosewood begin to crumble. If A has their way, the girls will be locked away forever.