“I know there are monsters on this earth,' said Tessa. 'You cannot tell me otherwise. I have seen them.”

“You think I tell you stories to teach you lessons? the monster said. You think I have coming walking out of time and earth itself to teach you a lesson in niceness?”

“Marry me," he said. "Marry me, Tess. Marry me and be Tessa Herondale. Or be Tessa Gray, or be whatever you wish to call yourself, but marry me and stay with me and never leave me, for I cannot bear another day of my life to go by that does not have you in it.”

“And broken both your hearts? How would that have benefited me? You are as dear to me as another half of my soul, Jem. I could not be happy while you were unhappy. And Tessa—she loves you. What sort of awful monster would I be, delighting in causing the two people I love the most in the world agony simply that I might have the satisfaction of knowing that if Tessa could not be mine, she could not be anybody’s?”

“Do you know, I always thought unicorns were fabulous monsters, too? I never saw one alive before!"Well, now that we have seen each other," said the unicorn, "if you'll believe in me, I'll believe in you.”

“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.”