The teeth snapped asunder as the lithe tongue licked across them, and as they closed again the breath hissed between them. The green light from its eyes shone luminous in the twilight of the overhanging ice. There was a swish and rush of released waters as it moved forward, and closed in upon the cave mouth. The dimness grew to utter night save for the faintest glow that filtered in from above, and the two pitiless eyes shone poised in the darkness like living coals.

Chapter XII, page 187