Mia came rushing across the gravel parking lot before I had even turned off the car. She threw open the passenger door and wrapped her arms around me. After three weeks away, my 13-year-old smelled of sunscreen, lake water, and the unmistakable scent of camp laundry soap. Her braid was coming undone, a handmade bracelet circled her wrist, and for a moment, she looked happier than I had seen her in years.