“Through it peeps the hobbit’s little head. Before him lies the great bottom-most cellar or dungeon-hall of the ancient dwarves right at the Mountain’s root. It is almost dark so that its vastness can only be dimly guessed but rising from the near side of the rocky floor there is a great glow. The glow of Smaug! There he lay, a vast red-golden dragon, fast asleep; a thrumming came from his jaws and nostrils, and wisps of smoke, but his fires were low in slumber. Beneath him, under all his limbs and his huge coiled tail, and about him on all sides stretching away across the unseen floors, lay countless piles of precious things, gold wrought and un-wrought, gems and jewels, and silver red-stained in the ruddy light.
Smaug lay, with wings folded like an immeasurable bat, turned partly on one side, so that the hobbit could see his underparts and his long pale belly crusted with gems and fragments of gold from his long lying on his costly bed. Behind him where the walls were nearest could dimly be seen coats of mail, helms and axes, swords and spears hanging; and there in rows stood
great jars and vessels filled with a wealth that could not be guessed.”

-The Hobbit, J.R.R. Tolkien