Star Darlings Gemma and the Ultimate Standoff (Star Darlings, 12)

Gemma talks too much and has no follow-through. She must learn how to listen to others and finish what she starts, while remaining curious and clever.
Gemma leaves for the final mission in the dead of night not realizing that her Wisher made a bad wish, which, if granted, could tip the balance of power forever. The other Star Darlings realize that Gemma is about to grant a bad wish, but without a shooting star in sight, they have no way of getting down to Wishworld. Luckily, a meteor shower begins, which serves to get the others to Wishworld to turn the wish around and collect the positive wish energy.
Gemma, meanwhile, is following up on her Wisher's bad wish, which is to be popular. The other Star Darlings arrive to help turn a negative wish into a positive one.