Bilbo Baggins, the titular protagonist, is a respectable, reserved hobbit. During his adventure, Bilbo often refers to the contents of his larder at home and wishes he had more food. Until he finds a magic ring, he is more baggage than help. Gandalf, an itinerant wizard, introduces Bilbo to a company of thirteen dwarves. During the journey the wizard disappears on side errands dimly hinted at, only to appear again at key moments in the story. Thorin Oakenshield, the proud, pompous head of the company of dwarves and heir to the destroyed dwarvish kingdom under the Lonely Mountain, makes many mistakes in his leadership, relying on Gandalf and Bilbo to get him out of trouble, but proves himself a mighty warrior. Smaug is a dragon who long ago pillaged the dwarvish kingdom of Thorin's grandfather and sleeps upon the vast treasure.