vibrant, colorful cover featuring Mia (9 years old, long brown hair, blue eyes, wearing a pink tee-shirt with a star design and denim shorts), Liam (10 years old, short messy blond hair, green eyes, wearing a green T-shirt with a dinosaur print and cargo shorts), and Whiskers (small gray kitten, bright green eyes, wearing a tiny bell collar) holding a magical, glowing hula hoop. The background is a blend of various adventure settings: ancient Egypt, a medieval castle, the Wild West, an enchanted forest, a futuristic city, and a Chinese kite festival. Pixar style in full resolution. Mood: exciting and adventurous. Each character must be visible."