Children of the Shell

In a distant future, a seventeen-year-old girl named Veena has lived out her entire life inside of a Dyson sphere, an enormous mega structure large enough to encapsulate an entire star. Everybody she's ever known and her entire civilization exist on the sphere's interior surface. Nobody enters the sphere and no one ever leaves.
For twenty million years, trillions of people have inhabited the interior of the sphere with only rumor and legend explaining the shell's origins and the mysterious Sphere Builders themselves, but with a growing resistance to the sphere's designed origins spreading, those who believe in the universe beyond the shell and a Creator are only met with persecution.
Some within the sphere say nothing exists outside of the shell, no space, no universe, and no Creator, but Veena and her father are among the few who possess an unwavering conviction that there is an Outside and more.
But after Veena suffers an enormous emotional loss and a close personal betrayal, and with poverty, starvation, and illnesses all threatening to destroy her family, Veena is eventually forced to make a choice-either watch her family be destroyed, or do the unthinkable . . . Embrace both faith and forgiveness and embark upon the greatest adventure of mankind, first in hopes of saving her family from starvation and sickness, but later from a horrifying and unseen natural threat.