Cloudy with a Chance of Meatballs 3, Planet of the Pies is an American children's book and the third book in the Cloudy with a Chance of Meatballs children's book series after Pickles to Pittsburgh.


When astronauts land on Mars, their first discovery is a substance not unlike pie filling and Kate and Henry are eager to go taste some, but Grandpa, who may have some inside information, discourages them.

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