I'm going to give you a little piece of text from this wiki about the hobbit.
Bilbo Baggins, a hobbit,
is smoking in his porchway one day when Gandalf the Wizard visits him. After a lengthy discussion,
during which Bilbo uses the phrase "Good Morning" several times, in several
different ways, Bilbo finding himself flustered, invites Gandalf to tea, and
goes back inside his hobbit-hole with a final "Good Morning". Gandalf scratches
a secret mark on Bilbo's front door, which translated means 'Burglar wants a
good job, plenty of excitement and reasonable reward'. Thirteen Dwarves (Thorin Oakenshield, Gloin, Óin, Ori, Nori, Dori, Dwalin, Balin, Kili, Fili, Bifur, Bofur, Bombur) show up and begin excitedly discussing their
planned treasure
hunt while the hapless Bilbo provides the obligatory hospitality. After the
dwarves clean up their mess, a map is produced and Gandalf arranges for Bilbo to
get the burglary job—as well as to break the unlucky number 13. The company's
quest: Using a secret door into the Lonely Mountain, send forth their burglar to
purloin as much of the riches within its halls as is possible.
The next morning, after oversleeping and nearly
missing the start of the journey, Bilbo goes off with the Dwarves. They are
nearly eaten by three trolls, but Gandalf tricks the trolls into staying up all
night whereupon they are turned into stone by the first light of dawn. (The
stone trolls appear later in The Lord of the Rings.) In the trolls' cave
they find the trolls' stolen treasure, including several Elvish swords.
Bilbo acquires Sting,
which glows blue in the presence of goblins. Thorin acquires Orcrist, and
Gandalf acquires Glamdring.
