“Who am I?” he whispered. “For years I pretended I was other than I was, and then I gloried that I might return to the truth of myself, only to find there is no truth to return to. I was an ordinary child, and then I was a not very good man, and now I do not know how to be either of those things any longer. I do not know what I am, and when Jem is gone, there will be no one to show me.”

“Jem—Jem is all the better part of myself. I wouldnot expect you to understand. I owe him this. “I know. I know it. And yet I feel such dread in my heart, as if it were the last hour of mylife. I have felt hopelessness before, Tess, but never such fear. And yet I have known—Ihave always known …”That Jem would die. She did not say it. It was between them, unspoken.“Who am I?” he whispered. “For years I pretended I was other than I was, and then I gloried that I might return to the truth of myself, only to find there is no truth to return to. I was an ordinary child, and then I was a not very good man, and now I do not know how to be either of those things any longer. I do not know what I am, and when Jem is gone, therewill be no one to show me.”

“I don’t know what to do,” Will said. “Mortmain has taken Tessa, and I believe now I know where she might be. There is a part of me that wants nothing more than to go after her. But I cannot leave Jem. I swore an oath. And what if he wakes in the night and finds I am not here?” He looked as lost as a child. “He will think I left him willingly, not caring that he was dying. He will not know. And yet if he could speak, would he not tell me to go after Tessa? Is that not what he would want?” Will dropped his face into his hands. “I cannot say, and it is tearing me in half.”

“Haven’t I?” Magnus said, and then smiled at him. “Will, you treat me as a human being, a person like yourself; rare is the Shadowhunter who treats a warlock like that. I am not so heartless that I would call in a favor from a brokenhearted boy. One who I think, by the way, will be a very good man someday. So I will tell you this. I will stay here when you go, and I will watch over your Jem for you, and if he wakes, I will tell him where you went, and that it was for him. And I will do what I can to preserve his life: I do not have yin fen, but I do have magic, and perhaps there is something in an old spell book I might find that can help him.”

“Do not think I do not know that Cecily wants you to return home with her. And do not think I do not know that you remain for Jem's sake.""And yours," he said before he could stop himself.”

“I have heard sometimes that men who lose an arm of a leg still feel that pain in those limbs, though they are gone,' said Will. 'It is like that sometimes. I can feel Jem with me, though he is gone, and it is like I am missing a part of myself.”

“I always loved you, Will, whatever you did. And now I need you to do for me what I cannot do for myself. For you to be my eyes when I do not have them. For you to be my hands when I cannot use my own. For you to be my hear when mine is done with beating.No, said Will wildly. No, no, no. I will not be those things. Your eyes will see, your hands will feel, your hear will continue to beat.But if not, Will-If I could tear myself in half, I would-that half of me might remain with you and half follow Tessa-Half of you would be no good to either of us, said Jem.”