Now or Never

Trudy has wanted to travel to Luna ever since she was a young girl. Erica’s favorite aunt lives on Luna. But space travel is prohibitively expensive. Now Erica and her brother, Trudy and her sister, have been offered trips to Luna. They do not know that their mothers want them on Luna to keep them safe from a plague that might devastate Terra. However, rumors of a plague are disrupting space travel. What if the plague should reach Luna? And if the plague cuts Luna off from Terra, can Luna survive?