"The Hobbit or There and Back Again" is a fantasy novel by J.R.R. Tolkien that follows the adventure of a hobbit named Bilbo Baggins. Bilbo leads a quiet and uneventful life in the Shire until the wizard Gandalf and a group of dwarves, led by Thorin Oakenshield, visit him. They enlist Bilbo's help as a burglar to reclaim the dwarves' homeland and treasure from the dragon Smaug. This meeting sets Bilbo on an unexpected journey that changes his life forever.
Throughout the adventure, Bilbo encounters various challenges and creatures, allowing him to discover bravery and resourcefulness he never knew he possessed. Along the way, he faces trolls, goblins, and giant spiders and befriends elves and a mysterious creature named Gollum. One of the critical elements of the story is Bilbo's acquisition of a magical ring that grants him invisibility, which proves vital in his quest.