35 - What if humans found an alien spaceship and what if houses built themselves?
Zack and Zizi investigate a strange new house in their local park, only to learn that it's some kind of thinking spaceship! When space-houses start springing up everywhere, the kids need to call an old friend for help: Peter the Realtor (aka Petey the Pirate).
Lessons include: always let your parents know where you're headed, think about the environment when building, be smart and careful when meeting new people and places
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