Create a 5-second vertical cinematic fantasy adventure video based directly on the reference image. SUBJECT: A fluffy white cat and a golden retriever. Preserve their exact appearance, fur colors, body proportions, relative size, and identity from the reference image. ENVIRONMENT: An immense circular magical library filled with towering curved bookshelves, ancient stone architecture, enormous spiral staircases made of stacked books, floating books, and countless pages drifting through the air. Bright sunlight pours through the circular opening in the ceiling. A single large open ancient book floats in the air between the white cat and the golden retriever, glowing with soft golden and blue magical light. CAMERA: Match the original low-angle cinematic composition. Keep both animals visible in the foreground and the same central floating book clearly visible between them. Preserve the scale of the circular library and its spiral staircases. Use a gentle forward tracking movement as the animals begin following the book. One continuous shot, no cuts. TIMELINE: 0–1 seconds: The white cat and golden retriever stand beneath the floating open book, looking up at it. The book hovers steadily in the same position and emits a soft golden glow. Tiny magical particles drift gently around its pages. 1–2 seconds: The pages of the floating book begin turning by themselves, one page at a time. The book slowly tilts forward as if preparing to move. A few golden particles spill from the open pages and drift downward. Both animals continue watching the book. 2–3 seconds: The same book gently glides forward through the air toward the deeper part of the library, moving away from the animals and toward the spiral staircase. Its movement is slow, smooth, and clearly visible. The white cat follows the book with its eyes and turns its body toward its direction of travel. 3–4 seconds: The white cat takes several small, natural steps forward, beginning to follow the floating book. The golden retriever notices the cat moving and turns to follow it. 4–5 seconds: The golden retriever begins walking behind the cat. Both animals move together toward the floating book and the deeper library. The book continues gliding slowly ahead of them, remaining visible in the air. End with both animals following the floating book farther into the magnificent library. VISUAL STYLE: Photorealistic cinematic fantasy animation, realistic fluffy fur, natural animal anatomy and movement, intricate antique books, aged paper, vast curved bookshelves, towering spiral staircases, golden sunlight, luminous magical particles, floating pages, atmospheric depth, and a sense of wonder. The atmosphere should be beautiful, mysterious, and inviting rather than threatening. The magic should remain elegant and restrained. AUDIO: Soft ambient library atmosphere with a gentle airy resonance. Quiet paper rustling as the pages turn. A delicate crystalline chime when the floating book begins moving. Soft paw steps on the book-covered floor as the cat starts walking, followed by the dog's footsteps. A subtle, warm magical musical tone builds as both animals follow the book. No dialogue. CONTINUITY AND CONSTRAINTS: The white cat and golden retriever remain the same animals throughout the video. The single floating book remains the same book throughout the entire sequence. The book begins hovering in the position shown in the reference image. The book's pages begin turning before it moves. The book moves smoothly forward, away from the animals, toward the deeper part of the library. The book never disappears, teleports, duplicates, or changes shape. The cat begins following the book before the dog. The dog follows the cat. Both animals remain on the floor and do not jump onto floating books. The spiral staircases, bookshelves, architecture, and ceiling remain stationary. Other floating books remain in the background and do not suddenly rush toward the animals. Do not introduce new characters, creatures, or additional magical objects. No explosions, attacks, or sudden scene changes. No cuts. The visual story must remain clearly understandable even if no audio is generated.