[Reactions honed in the Labyrinth, where one false step can mean a brutal, painful demise, mean Arthur is awake and on his feet by the end of the bang, and running for the stairs immediately.

It doesn't matter that right now the walls seem to be red and soft, punctuated with white stones. It doesn't matter that he hears a squish with each footstep. He needs to go.

So, what's up(stairs)?]