A cartoon boy in goggles and a rocket shirt runs with a magnifying glass, his friend chasing him, on a book cover with a space theme.

Full cover spread with title treatment The cover shows Arthur Sparks in an action pose, running forward with determination. He's a 10-year-old boy with messy brown hair, wearing round safety goggles pushed up on his forehead, a blue t-shirt with a rocket ship design, khaki cargo pants with bulging pockets, and red sneakers. He's holding his magnifying glass in one hand. Behind him is a collage-style background showing: the school building, a mysterious purple footprint glowing, the moon rock on a pedestal, and his friend Keisha running alongside him. The background has a subtle space theme with constellation dots and a crescent moon. The title "ARTHUR SPARKS AND THE MISSING MOON ROCK" is in bold, playful letters at the top with a slight metallic/moon surface texture. At the bottom: "By [Author Name]" in a friendly font. The overall color palette includes deep blues, purples, silvers, and pops of bright yellow for energy. See more