Harv did not explain himself but went about working with his things. He 
unscrewed the bulges on his mask and took out black things that kicked up 
little black dust storms when he tossed them onto the floor. He replaced them 
with a couple of white things that he took from a Nanobar wrapper, though by 
the time he was finished, the white things were covered with his black 
fingerprints, the ridges and whorls perfectly
resolved. He held the Nanobar wrapper up to the light for a moment.