Astrid Maxxim and her Hypersonic Space Plane (Astrid Maxxim: Girl Inventor Book 4)

Everyone’s favorite girl inventor is back. The Maxxim space program is in full swing, ferrying supplies to the International Space Station, as Astrid perfects her ground-launched rocket plane. To finish it, she must first deal with Maxxim’s new automotive division, a terrifying vision of the future, and an English class essay, and her cousin Gloria coming for Thanksgiving.