Oracle code. NIKAMP M.

A shot from a pistol forever changed the life of Barbara Gordon. Now it is chained to a wheelchair and is forced to undergo rehabilitation in the center of equal capabilities of Arkham. Barbara is trying to adapt to her new position, but cannot get rid of anxiety and fear. The old building of the center is filled with strange sounds at night, and patients soon begin to disappear.

Barbara cannot understand: is this feeling just the result of her injury? Or does she really hear voices coming from somewhere in the walls of the center? The girl has to collect a real puzzle from facts, observations and conclusions in order to solve this secret.