In a world where the most stressful thing seems to be winning a soccer game or what to wear in the morning, you take some really basic things for granted.Like the love of your parents.Or hanging with your friends.Or the beating of your heart.When you're 16 years old, it never occurs to you that you might die. Emmi Miller's got a fabulous life. She has tons of friends, does great in school and is an all-star soccer player who played in Europe last summer. It even looks like Sam Hunter, a totally cute baseball player, might be interested in her. And then she gets a virus. No biggy, right? Until the virus goes to her heart and weakens it so much that, without a transplant, Emmi will die.Will Emmi get a heart in time? Is Sam too good to be true? What about her new friend Abe, who has also had a transplant and guides her through these scary times - is he just being supportive or is there more going on between them? And will Emmi realize it before it's too late?