Well, it could go many ways. The girl might find a way to outsmart the goblins and break free. Or perhaps she'll form an unexpected alliance with them. The possibilities are endless depending on the author's imagination.
The book 'True Grit' by Charles Portis has elements that could be related. The main character, Mattie Ross, is a young girl who goes on a journey in the Old West. While not a traditional kidnapping story, she is in a dangerous situation and has to deal with some tough characters, much like what could be expected in a story about a kidnapped girl in the west. It's a classic with a strong female protagonist.
Survival is a common theme. The girl has to find ways to endure the harsh conditions of the West while being held captive. Another theme could be rescue, either by herself or by someone else. For example, she might use her wits to escape or wait for a hero to come to her aid.
It might be. True stories often get turned into books to raise awareness or share someone's harrowing experience. But one would need to research the background and author's claims to confirm its authenticity.