The human world is divided into two sections i.e the rich and the poor. The rich as a routine get all the luxuries of life and trickle down a few things to the poor when they want to. Jeff Wheeler takes the story to the next level as he increases the class difference up to the maximum level.
The rich people or the upper class lives in the heavens in this series and the poor live on the earth which is more like a workshop now. The rich have Mysteries that they keep to themselves and those living beneath are not allowed to crave for these Mysteries.
Clouds are for luxury now and the people who live on the land work to provide the upper class these luxuries. Cettie Pratt is one of those girls whose future is completely doomed because she was born on earth. Then one day an admiral from the clouds land on the earth and find the girl appealing to his heart.
He adopts this earthly girl and takes her with him to his house in the high clouds. Although the girl is adopted by the man the society never accepts her to be one of them. During these days of rejection, Cettie gets the chance to meet the princess who is curious about the world beneath the clouds. Kate Rudd narrates the curiosity of these two girls for the opposite worlds very beautifully. Both girls want to see the opposite world completely and this allows them to come closer to one another. The story is more innocent if compared with Knight’s Ransom and The Killing Fog because it is about the curiosity of opposite worlds. Then the talk about the storm in the later section makes it clear that the next parts of the series would be more dramatic.