"Inside out: "Trella was just doing a favor for a friend, her only friend. Hiding an injured man from the Pop Cops seemed easy enough, though dangerous. But then she discovered that the myths of Outside might be real...."
"The world of Inside is simple. Do your job, stay out of the way and don't dream of anything better. Because as every Scrub knows, there are no other options.Until Trella-the Queen of the Pipes, as some call her-gets involved with a revolution that will rock her world......Trella was just doing a favor for a friend-her only friend. Hiding an injured man from the Pop Cops seemed easy enough-though dangerous. But then she discovered that the myths of Outside might be real......Being Inside's hero only left Trella with more work. Ducking those responsibilities, she continued to explore her stark world-and found something she never expected. Strangers. From Outside...."@en
"Trella, a scrub whose life consists of cleaning for the socially superior Uppers, finds her peaceful life disturbed when she encounters a prophet who promises a better life for her people and ends up in the middle of a rebellion."@en
"Outside in: Being Insides's hero only left Trella with more work. Ducking those responsibilities, she continued to explore her stark world, ad found something she never expected. Strangers. From Outside...."

Inside / Inside Out / Outside in