Everybody knows that sons pay for the sins of their fathers. But mothers sin, too – especially in Rosewood, home of Aria, Ella, Hanna and Spencer, everybody’s favorite Pretty Little Liars. The venomous, mysterious and entirely invisible, “A,” discovers Aria’s mother had a long-ago affair in college with a very attractive, very unscrupulous art teacher. And that this older man led Aria’s mother into a life of crime, teaching her how to love, but also how to forge and sell valuable, famous paintings. The poison apple doesn’t fall far from the tree. Now of course Aria is trying to seduce her own favorite teacher, Ezra. And as A makes clear in a text to the girls, that’s not just going to happen without her making everyone’s life extremely uncomfortable. “Because I’m always watching and waiting,” A tells the pretty little liars. “Not just the four little liars. But the big liars, too. And I’ll take my revenge anyway I can get it.” Stained is another deep dish mystery that is sure to tease and delight fans of the long- running Pretty Little Liars TV and mystery series.