Talk:Till DeAth Do Us PArt/@comment-31984128-20170511224551/@comment-5696235-20170514043921

That could be possible since Mona said in Season 3 finale "She helped me find a way in and out of that place."

But I think it could be possibly be Paige, i mean Cece did help Ali bully her into sending a note to Emily (even though Paige did not know that she was there, plus Paige is strong enough to  throw Wilden (A grown man) off of Spencer ect ect