Up, Up, and Away — A.I. Newton

In the seventh book of The Alien Next Door series, Zeke's parents have completed their research on Earth, and Zeke may have to move away!

Zeke the alien comes home one day to find his parents packing. They tell him that their mission researching Earth is finished, and they're all going back to Tragas to be assigned to a new planet. Zeke is sad to once again leave and go to an unfamiliar place, especially now that he has great friends on Earth in Harris and Roxy. Harris is just as upset when Zeke tells him, and together, they come up with a plan to try to stop Zeke's departure. Will they be able to stop his family from going back to their home planet?