"As a new school year looms, ten-year-old Phoebe and her unicorn best friend, Marigold Heavenly Nostrils, decide to make the most of the final days of summer. They plan a joint birthday party and invite everyone--humans and magical creatures alike. After encountering her robotic double, Marigold faces a big, sparkly identity crisis. When Robot Marigold volunteers for a mission to space, she turns to Phoebe and Marigold for help. Will this otherworldly expedition find success?"--
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