for Space Boy and the Space Pirate by Dian Curtis Regan and Robert Neubecker
Niko and his crew embark on an intergalactic adventure to the Planet Zorg, where Niko's cousin Sasha is being held captive by a space pirate (who is actually Niko's sister, Posh!). But when Niko and his crew charge in to the rescue, the girls do the unthinkable by capturing his ship and leaving him stranded far from Planet Home. Using his characteristic ingenuity and wit, Niko manages to take back control of his spaceship and his story. With a picture book format, comic book-style artwork, and humorous, simple text, Space Boy and the Space Pirate is both a thrilling adventure and a celebration of the power of pretend play.
Publisher description retrieved from Google Books.