Smaug is a dragon that appears in the novel The hobbit. In it, it is said that it was the last of the great dragons that remained in Middle Earth and that expelled the dwarves of the Solitary Mountain taking its treasure. Within the adventure undertaken by the hobbit Bilbo Bolsón in the novel, Smaug becomes one of the obstacles that must overcome him and the company of dwarves whom he accompanies to recover the treasure belonging to Thorin Shield of Oak, heir of Thrór.