Chapter 1

There was once a girl who bullied me through my entire adolescence.

She probably never dreamed, not even in her worst nightmares, that the girl she used to grind her heel into, the girl she used to force to drink toilet water, would one day pay her back tenfold — and teach her the real meaning of humiliation.

All because she fell in love with my brother — Ethan — and thought she could waltz right through the door of the Callahan house.

…

Yesterday was Valentine’s Day. Ethan texted me to say that he and the girl he’d been seeing had made it official, and that he was bringing her home the next day for us to meet.

I was so happy I nearly jumped out of my skin.

Ethan had always been my hero. Handsome, brilliant, and fiercely protective of me from the time we were kids. For years I’d been praying he’d find a girlfriend soon — someone else to look after him, to love him.