Cecil,Henry and Ellie accidentally get trapped inside a spaceship when Belatites, peaceful creatures when space, visit earth to collect smells. The three children are taken to their beautiful planet where they discover that the Belatites are under attack from the Ugrobyls. The Belatites are trapped as the Ugrobyls release a noxious gas that kills them, but the children turn out to be unaffected by the wisfrin gas. The three children come up with a clever, dangerous plan to save the Belatites. A nice extraterrestrial read for 7-9 year olds who love space, like my daughter who enjoyed this book.