Going Down

Twelve floors up. Twelve floors down into hell.

Isabelle swore she would never step inside an elevator again. Not after the “incident” a decade ago that stole her friends and fractured her sanity. But to spare her aging father a grueling climb, she steps inside the silver doors one last time.
It is a fatal mistake.
When the elevator lurches to a halt on the eleventh floor, two more passengers step inside. Suddenly, the elevator plunges. It screams past the first floor, past the basement, and violently dings on floor negative twelve.
When the doors jam open, the world they knew is gone. Trapped in a shifting, hostile anomaly where buildings mutate, rooms lead to nowhere, and clothes transform into military uniforms, Izzy recognizes the nightmare.