He went to many places:
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The dwarves are Bilbo's friends for most of the Hobbit.
The rising action of The Hobbit is when Bilbo and his band of dwarves come to the Lonely Mountain and go inside.
Bilbo Baggins was hired to be the burgler in the Hobbit.
Bilbo was 50 years old in The Hobbit, which was considered middle aged for hobbits.
The hobbit Bilbo Baggins, mainly, although he had an awful lot of help along the way.