Luna and the talking pig

Twelve-year-old Luna, a fan of a series of books about superheroes fighting for the environment, receives a magic pen from the mysterious author of the books. This enchanted object makes everything he writes become a reality. The girl discovers how powerful his power is and embarks on a dangerous quest to repair the damage done to the environment and save the planet from impending disaster. She is accompanied by Airbag, a beloved guinea pig who, thanks to the use of a pen, unexpectedly begins to speak.