" The mists were so thick that only the nearest trees were visible; beyond them stood tall shadows and faint lights. Candles flickered beside the wandering path and back amongst the trees, pale fireflies floating in a warm grey soup. It felt like some strange underworld, some timeless place between the worlds, where the damned wandered mournfully for a time before finding their way down to whatever hell their sins had earned them. Are we all dead, then? "

― George R.R. Martin , A Dance with Dragons (A Song of Ice and Fire, #5)