At
the Department of MysteriesThey crept forward, glancing behind
them as they went on down the long alleys of shelves, the further ends of which
were in near-total darkness. Tiny, yellowing labels had been stuck beneath each
glass orb on the shelves. Some of them had a weird, liquid glow; others were as
dull and dark within as blown light bulbs.(OotP, UK edition, p. 686)