A great enemy
Smaug is the great enemy of the dwarves in the book The Hobbit by J.R.R. Tolkien and the movies that are adapted from it. Many years ago the dwarf king Thrain had settled with his people in the lonely mountain, building a forge and beginning to amass wealth. But when he found the Arkenstone, the ultimate treasure, he became obsessed with wealth and began to accumulate too much. The smell of all that gold awakened the great dragon Smaug and lured him away. Smaug destroyed the city and everything in his path, forcing the inhabitants to flee to the mountain, to his treasure where he slept for many years. Much later, his grandson Thorin wanted to take back his throne and so he took a company of thirteen dwarves, Gandalf the wizard and, a little against his will, the hobbit Bilbo as a thief to infiltrate the mountain and steal the Arkenstone from under Smaug’s nose.