Reflections of Fire and Shadows in a Mystic Mirror

Fantasy book cover, dark and mystical. In the center is a tall, vertically cracked mirror or glass panel, splitting the image in two. On the left side stands a teenage girl with pale skin, blonde hair in a ponytail, wearing dark flexible clothing. Her expression is distant and sad, her eyes slightly silver, and a black thorn tattoo with a faint red glow is visible on her arm. On the right side is a teenage boy with messy black hair, pale skin, and glowing orange-red eyes. He wears loose black clothing and looks intensely through the crack. Faint reflections of fire flicker near him. The background is a hazy gray-violet mist with shadowy fragments or silhouettes floating around. The mirror crack glows faintly red and orange. At the top center, space for a fantasy book title. The mood is dark, mysterious, emotional, and otherworldly.