The Girl with the Mermaid Hair

Click. Sukie Jamieson takes a selfie after her tennis lesson. Click. She takes one before she has to give a presentation in class. Click. She takes one to be sure there's nothing in her teeth after eating pizza at Clementi's. And if she can't take a selfie, she checks her reflection in windows, spoons, car chrome—anything available, really. So when her mother gives her an exquisite full-length mirror that once belonged to her grandmother, Sukie is thrilled. So thrilled that she doesn't list...