Teddy's new world seems perfect. The refugees of Undercity have better housing, room for everyone, clean, running water, and more. But skeptical Caden's not so sure all is rosy. Food is scarce and something or someone is making noise in the sealed tunnels leading to the Upperlords. Teddy's determined to find out if the Upperlords are still a threat to their safety. As he makes his way back with the help of Caden's best friend, Cate, Deb has gone missing. Caden fears the worst as she, Jolon, and Henri search for her. Has their little sister risked everyone's safety and wandered outside?

Divided, desperate, and injured, the refugees of Undercity struggle to escape the control of the Upperlords. Pa is missing. Henri and Teddy in the clutches of Dorkas and his creepers. Caden, Ma, Deb, and Georges are Belinda's prisoners. And Cate has teamed up with Jolon and Nuna to try and save them all. What else can go wrong?

Undercity - Year 109 MD (Meteor Devastation) Teddy's whole life exists in tunnels and centers on the survival of his adopted family. Everything they have, what living they make, they scrounge for--digging through the rubble of a past society that seemed like Utopia. Now, their world is collapsing as greed, starvation, and poverty cripple what remains of their civilization. Was there another way to live? Can the tunnels finally lead Teddy and his family to a paradise free from the oppression of the Upperlords who dictate their lives and worth? How many people might he lose along the way?