The Vertical City

Level 23 never sleeps. It only dims. For centuries, humanity has lived sealed inside the vertical cities - towers that feed them, house them, and watch them, under the absolute control of the Authority. Maintenance engineer Kira Hale has never seen the sky. Then she feels a tremor that should not exist, and follows it down into the Between: a hidden community living in the tower's forgotten arteries, led by a man who trusts no system he didn't build. When Kira's touch wakes the network the tower's ancient Builders left sleeping in the stone, every tower on Earth begins to stir - and Authority Director Lira Dane must choose between the Council she serves and the data she cannot unsee. The towers were never a prison. They were never meant to be permanent. And the truth about why humanity went inside is about to open every sealed door at once.