Ethel M. Dell, The Bars of Iron
“ He made a curious sound that was half-laugh, half-groan. "You don't know yourself, Avery," he said."But you don't doubt my love, Piers," she protested very earnestly. "You know that it would never fail you.""Your love is like the moonlight, Avery," he answered. "It is all whiteness and purity. But mine—mine is red like the fire that is under the earth. And though sometimes it scorches you, it never quite reaches you. You stoop to me, but you can't lift me. You are too far above. And the moonlight doesn't always reach to the prisoner in the dungeon either." ”
