He tried to count the small plastic ovals screwed on the doors, each with its own three figures, but the corridor seemed to go on forever. At last the man halted before a door, a door veneered like all the rest with imitation rosewood, and put his hand over the lock, his palm flat against the metal. Something scraped softly and then the mechanism clicked and the door swung open. As the man withdrew his hand, Coretti saw a grayish-pink, key-shaped sliver of bone retract wetly into the pale flesh.