This steamy faery story reads like a torrid girl’s fantasy and will produce some swoons. Aislinn’s spent her life terrified of the faeries (“fey”) all around her, invisible to other humans. They smack and trip each other, leer and wound; to remain safe, she can’t let them know she sees. Her only safe space is inside the funky train-car home of sexy friend Seth. Fey can’t enter because steel hurts them—or does it? The old rules are changing. Two faeries stalk Aislinn, paying unprecedented and disturbing personal attention. Readers know early that Aislinn’s destined to become a faerie monarch and rule as Summer Queen beside Keenan, the Summer King, whom readers may find obnoxious or dreamy. Marr’s consistent labeling of the situation as a “game” doesn’t match the dire possibilities: The earth will freeze if Aislinn isn’t Summer Queen, but she wants to live a regular life, including college, cell phones and tattoos. Meanwhile, it’s Keenan’s job to woo Aislinn, but his old love (currently the lonely holder of winter’s chill) may die if he’s successful. Overlong wish-fulfillment, but enjoyably sultry. (Fantasy. YA)