Pretty Little Liars Fan Fiction

Rosewood, Pennsylvania the home of a killer, the home of six friends: Spencer Hastings, Alison DiLaurentis, Aria Montgomery, Madilyn Montgomery, Hanna Marin and Emily Fields, whose clique falls apart after the leader of the group, Alison, goes missing.
A year goes by without any word from Alison and the trail goes cold on her whereabouts. Everyone goes there separate ways, that is until the one year anniversary of her disappearance. Madilyn and Aria's family moves back from Iceland and secrets begin to unravel.
Madilyn is hiding a secret from everyone, one that maybe is the reason why Ali disappeared.
Spencer cant remember what really happened that night and might be the person that everyone really needs to be scared of.
Aria may have created her own problem but only time will tell if she sinks or swims away.
Emily may be masquerading as someone she isn't but will never tell the truth unless she forced to.
Hanna has it all but at the price of her friend being missing could she have something more to do with Ali's disappearance than anyone knows.
And poor Ali gone without a trace or is she.
Someone knows everything and will stop at nothing to torture the girls and reveal the truth.