The Burning Sky by Sherry Thomas

new smidgen of fire revealed the pendant to be a half oval made of a gleaming silver-white metal, with faint tracery on its surface. At first it remained icy to the touch—proximity to her fire made no difference. Then, for no reason she could discern, it warmed to room temperature.
    The prince’s presence had to be one of the most puzzling aspects of the day, second only to Master Haywood’s anguished ignorance.
    Master Haywood had known that she should be kept away from the prying eyes of Atlantis. He had prepared a satchel in the event of an emergency evacuation. How could he not know then where she was going or what was in the satchel?
    The satchel!
    She shoved the pendant into her pocket, called for more fire—taking care that it didn’t come near her hair or her clothes—and searched inside the satchel. Her fingers encountered fabric, leather, a silky pouch with jingling coins, and at last, an envelope.
    The envelope contained a letter.
    Â 
    My dearest Iolanthe,
    Â 
    I have just come from your room. You are a week short of your second birthday, sleeping with a sweet gusto under the singing blanket that was still crooning softly to you as I closed the door behind me.
    I want a secure, uneventful future for you. It fills me with dread to think of you someday reading this letter, still a child, yet utterly alone, as you must be. 
    (I can’t help but wonder how your power would have manifested itself. By causing the Delamer River to flow in reverse? Or shearing the air of a sunny day into a cyclone?)
    Nightly I pray that we will never come to it. But it has been agreed that for the sake of everyone’s safety, I will give up my knowledge of certain events to a memory keeper. After tomorrow, I will only know that I must guard the extent of your powers from the notice of Atlantis, and that if I were to fail, to distance you from immediate harm.
    You no doubt crave explanations. Yet explanations I dare not set down in writing, for fear that this letter falls into the wrong hands, despite all my precautions. Only remember this: keep away from any and all agents of Atlantis. Every last mage in pursuit of you seeks to abuse and exploit your powers.
    Trust no one. 
    Trust no one, that is, except the memory keeper. She will find you. And she will protect you to her dying breath.
    To help her, remain where you are for as long as you can—I have been assured that the end-portal will be kept at a secure location. But by all means use caution. You cannot be careful enough. And whatever you do, do not repeat the action that brought you to Atlantis’s notice in the first place. 
    Be careful, Iolanthe. Be careful. But do not despair. Help will reach you. 
    I want nothing more than to take you into my arms and assure you that all will be well.
    But I can only pray ardently that Fortune walks with you, that you discover hitherto unimagined strength in yourself and encounter unexpected friends along this perilous path that you must now tread.
    Â 
    All my love,
    Horatio
    Â 
    P.S. I have applied an Irreproducible Charm to you. No one can capture your likeness—and therefore Atlantis will not be able to disseminate your image.
    Â 
    P.P.S. Do not worry about me. 
    Â 
    How could she not worry about him? The Inquisitor would be furious when she realized that he’d deliberately given up his memories to foil her. And if—
    A thump in the floor—a vibration that shot up Iolanthe’s spine—scattered her thoughts. She shoved the letter back into the satchel and extinguished her fire. For a moment she could hear nothing, and then it came again, the thump. Her fingers closed around her wand.
    She lifted the disc covering the peephole. Part of the floor lifted. A trapdoor—she was in an attic. Light wafted up from the opening, illuminating crates, chests, and shelves upon which crowded ranks and rows of dusty curiosities. 
    The trapdoor rose farther,