She was the Impossible Girl. She was as strong and powerful as multiple Shadowhunters combined. She was the most precious thing to everyone. She's just as precious to anyone as the Mortal Cup itself; that's why Valentine wants her and the cup so badly. But little does he know, she's not on his side anymore and over time she's become more powerful than she'll ever be. Not only is she impossible to harm, she's also impossible to get. That's why Alec Lightwood likes her so much, because they're both the same; they pretend they don't feel any emotions but deep down they really do. She fell for him, he fell for her, but neither one knew. Now that Valentine is looking for Athena and the Mortal Cup, it's Alec's turn to do anything possible to protect her from him. Little does he know, on their journey to defeating Valentine, he'll start to fall more and more in love with her.