Imperatix Mundi

A thousand years into the future humankind is thriving on Earth and a multitude of habitats orbiting around the sun, where Imperatrix Mundi guarantees universal peace.
Technology has made possible a society where people are forever young and have everything they want. There are no worries and people should be happy.
They are, but for how long?
There is this inner awareness that science has reached its limits and that it is impossible to reach the stars. The feeling that civilization has reached a plateau and the future is gloomy. There is nowhere to go.
Lorenzo, a son of the Imperatrix is marauded on Earth, where he finds Dianne, a scrawny teenage girl. Their destiny sets them on an adventurous path that collides with the ambitions of old people.
However, when Lorenzo is assassinated, Dianne finds that she is in charge.
What can she do?