Clockwork Princess

will not start now. I will ask of you only one thing. To allow someone to live in the Institute, in the very heart of the Enclave, is to place my trust in their good intentions. Do not make me regret that I have trusted you, Gabriel Lightwood.”
    The shadows had lengthened in the library. Tessa sat in a pool of light by one of the windows, beside a shaded blue lamp. A book had been open on her lap for several hours, but she had not been able to concentrate on it. Her eyes skidded over the words on the pages without absorbing them, and she would often find that she was pausing to try to remember who a character was, or why they were doing what they were doing.
    She was in the middle of beginning chapter five yet again when the creak of a floorboard alerted her, and she looked up to find Will standing before her, damp-haired, his gloves in his hands.
    “Will.” Tessa set the book down on the windowsill beside her. “You startled me.”
    “I didn’t mean to interrupt,” he said in a low voice. “If you are reading …” He began to turn away.
    “I am not,” she said, and he stopped, looking back at her over his shoulder. “I cannot lose myself in words now. I cannot calm the distraction of my mind.”
    “Nor I,” he said, turning fully now. He was no longer spattered in blood. His clothes were clean, and his skin mostly unmarked, though she could see the pinkish-white lines of grazes on his neck, disappearing down into the collar of his shirt, healing as the
iratzes
did their work.
    “Is there news of my—is there news of Jem?”
    “There is no change,” he said, though she had guessed as much. If there had been a change, Will would not have been here. “The Brothers will still not let anyone into the room, not even Charlotte.
    “And why are you here?” he went on. “Sitting in the dark?”
    “Benedict wrote on the wall of his study,” she said in a low voice. “Before he turned into that creature, I imagine, or while it was happening. I don’t know. ‘The Infernal Devices are without pity. The Infernal Devices are without regret. The Infernal Devices are without number. The Infernal Devices will never stop coming.’”
    “The infernal devices? I assume he means Mortmain’s clockwork creatures. Not that we have seen any of them for months.”
    “That does not mean they will not come back,” Tessa said. She looked down at the library table, its scratched veneer. How often Will and Jem must have sat here together, studying, carving their initials, as bored schoolboys did, into the table’s surface. “I am a danger to you here.”
    “Tessa, we have talked about this before. You are not the danger. You are the thing Mortmain wants, yes, but if you were not here and protected, he could get you easily, and to what destruction would he turn your powers? We don’t know—only that he wants you for something, and that it is to our advantage to keep you from him. It is not selflessness. We Shadowhunters are not selfless.”
    She looked up at that. “I think you are very selfless.” At his noise of disagreement she said: “Surely you must know that what you do is exemplary. There is a coldness to the Clave, it is true.
We are dust and shadows
. But you are like the heroes of ancient times, like Achilles and Jason.”
    “Achilles was murdered with a poisoned arrow, and Jason died alone, killed by his own rotting ship. Such is the fate of heroes; the Angel knows why anyone would want to be one.”
    Tessa looked at him. There were shadows under his blue eyes, she saw, and his fingers were worrying at the material of his cuffs, thoughtlessly, as if he were not aware he was doing it. Months, she thought. Months since they had been alone together for more than a moment. They’d had only accidental encounters in hallways, in the courtyard, awkwardly exchanged pleasantries. She had missed his jokes, the books he had lent her, the flashes of laughter in his gaze. Caught in the memory of the easier Will of an earlier time, she spoke without thinking:
    “I cannot stop recollecting something you told me once,” she said.
    He looked at her in surprise. “Yes? And what is that?”
    “That sometimes when you cannot decide what to do, you pretend you are a character in a book, because it is easier to decide what they would do.”
    “I am,” Will said, “perhaps, not someone to take advice from if you are seeking happiness.”
    “Not happiness. Not exactly. I want to help—to do good—” She