what story did thorin tell bilbo?

The adventure surrounds an old dwarf-map that depicts a mountain, in which a dragon named Smaug lives. Smaug has stolen hordes of treasure and these hordes must be reclaimed. It is up to Bilbo Baggins to find a way to sneak into the mountain. Of course, there is an incredibly dangerous terrain separating Hobbiton from Smaug's mountain and this is most of the challenge. The head of the assembled dwarves is Thorin and he is eager to reclaim the lost glories of his race. When Bilbo finally heads to bed, he is not at all pleased with the formidable challenge that stands before him.

Thorin explains that his grandfather, Thror, mined the mountain shown on the map and discovered a wealth of gold and jewels. Thror then became King under the Mountain, but his fantastic treasure attracted unwanted attention. Before long, the dragon Smaug came and killed or scattered all of Thror’s people. The dragon has been guarding the treasure ever since. Thorin and the dwarves are out to reclaim their rightful inheritance, even though they are unsure of what to do with Smaug when they find him.

At last, Gandalf arrives with the head dwarf, Thorin. The thirteen dwarves and the wizard nearly clean out Bilbo’s pantry before finally settling down to discuss their business.

It soon becomes clear that Gandalf has volunteered Bilbo to be a “burglar” for the dwarves on their adventure. The hobbit protests, and the dwarves grumble that the soft little hobbit does not seem suited to their adventure. Gandalf, however, is certain that Bilbo is useful, and insists that there is more to the hobbit than meets the eye.

The wizard then brings out an old map of a great mountain and points to a mysterious secret entrance, a door to which Thorin holds the key. Bilbo demands some clarification about the point of the whole expedition. Thorin explains that his grandfather, Thror, mined the mountain shown on the map and discovered a wealth of gold and jewels. Thror then became King under the Mountain, but his fantastic treasure attracted unwanted attention. Before long, the dragon Smaug came and killed or scattered all of Thror’s people. The dragon has been guarding the treasure ever since. Thorin and the dwarves are out to reclaim their rightful inheritance, even though they are unsure of what to do with Smaug when they find him.