Well, it seems that Aria, Emily, Hanna, and Spencer are keeping another deep, dark secret from spring break. They thought they were the only ones who knew what happened but it seems there was someone else there on that fateful night. Mysterious and vindictive "A" is out to get Aria, Emily, Hanna and Spencer and is doing all she can to ruin the girl's lives. Who is the new "A" and what does she know? Did she see what happened? Is this the end of the line for the girls? Read the 10th "Pretty Little Liars Novel Ruthless" today.