“Will suspected Jem was in fact cleverer than he was himself - but he lacked Will's tendency to assume the absolute worst about people and proceed from there.”

“Jem always said that Will rushed toward the end of a mission rather than proceeding in a measured manner, and that one must look at the next step on the path ahead, rather than the destination in the distance, or one would never reach one’s goal. Will closed his eyes for a moment. He knew that Jem was right, but it was hard to remember, when the goal that he sought was the girl that he loved.”

“Will had shrugged once, helplessly. He had almost wished Jem would be angry with him. It would have been easier. He'd never felt so small within himself as he did when he faced Jem's expansive kindness.”

“Zhi yin. Jem had told her once that it meant understanding music, and also a bond that went deeper than friendship. Jem played, and he played the years of Will's life as he had seen them. He played two little boys in the training room, one showing the other how to throw knives, and he played the ritual of parabatai: the fire and the vows and burning runes. He played two young men running through the streets of London in the dark, stopping to lean up against a wall and laugh together. He played the day in the library when he and Will had jested with Tessa about ducks, and he played the train to Yorkshire on which Jem had said that parabatai were meant to love each other as they loved their own souls. He played that love, and he played their love for Tessa, and hers for them, and he played Will saying, In your eyes I have always found grace. He played the too few times he had seen them since he had joined the Brotherhood- the brief meetings at the Institute; the time when Will had been bitten by a Shax demon and nearly died, and Jem had come from the Silent City and sat with him all night, risking discovery and punishment. And he played the birth of their first son, and the protection ceremony that had been carried out on the child in the Silent City. Will would have no other Silent Brother but Jem perform it. And Jem played the way he had covered his scarred face with his hands and turned away when he'd found out the child's name was James.He played of love and loss and years of silence, words unsaid and vows unspoken, and all the spaces between his heart and theirs; and when he was done, and he'd set the violin back in its box, Will's eyes were closed, but Tessa's were full of tears. Jem set down his bow, and came toward the bed, drawing back his hood, so she could see his closed eyes and his scarred face. And he had sat down beside them on the bed, and taken Will's hand, the one that Tessa was not holding, and both Will and Tessa heard Jem's voice in their minds.I take your hand, brother, so that you may go in peace.Will had opened the blue eyes that had never lost their color over all the passing years, and looked at Jem and then Tessa, and smiled, and died, with Tessa's head on his shoulder and his hand in Jem's.”

“Jem knotted his fingers in the material of Will's sleeve. "You are my parabatai," he said, "You said once I could ask anything of you.”

“For five years it had been his absolute truth. Jem and Will. Will and Jem. Will Herondale lives, therefore Jem Carstairs lives also.”

“Jem put the full force of himself into each smile, so that he seemed to be smiling with his eyes, his heart, his whole being.”