They reached the prison and went inside.  They were greeted at the door by a guard who spoke briefly with Kingsley and then led all of them deeper into the prison.  On one of the middle floors, somewhere deep in the back end of the building, far from any entrance, the guard pointed his wand through a set of bars and Hermione recognized at once the haggard, thin man who sat on the floor looking out the single slip of a window at the top of the cell’s outside wall, through which the overcast sky could be seen.  At the wandlight, he turned to look at them, startled.