Kate, Humphrey and Luke track the Raiders through the tunnel. Kate is captured and threatened with rape.

ASUA is the gritty, coming of age story of Kate, a fourteen year old, Joan of Arc, 'tunnel' girl who is forced to confront threats of sexual assault and child marriage as she tries to save her kidnapped sisters from surface 'Raiders' and 'the Green Zone' in the not too distant future.

Several years after the Softwar Companies fought each other, Kate lives with her mother, father and younger twin sisters on a tunnel farm. A Raider force from the surface attacks and murders Kate's mother and father, and kidnaps the Twins. Kate escapes by hiding in a prepared burrow away from the house. After burying her parents, Kate follows her parents oft repeated instructions, "Take care of your sisters." Kate sets out to save her sisters from the horror of captivity and slavery.

Above ground for the first time in her life Kate finds the Twins, but is betrayed by a friend and captured by the Raiders. She and her sisters are taken to a large Raider gathering to be sold. There is a camp explosion which allows Kate and her sisters to escape. They find refuge in the Green Zone, a city inhabited by engineered humans who are seeking ovum 'donors.'