You have handled a difficult topic well. Your writing is good for paragraph after paragraph, and then you suddenly have all kinds of mechanical problems with punctuation (especially the use of semicolons), capitalization, and correct word usage (examples: used too when it should be to, bear for bare, shuttered for shuddered, etc.). Mechanics are very important- there are over a million ISBNs issued in the US every year, and any book that isn't mechanically nearly perfect goes immediately to a publishers reject pile, which would be a shame for your book because you have a message that needs to be heard.
Read the story now
There are also a lot of lapses in logic. A ship doesn't go from the US to India overnight, it doesn't travel 500 mph. Lena's father didn't want Zoey because she had been with a lot of guys, but he had access to her before she was with anyone. He wanted Lena because she was a virgin, but then had her raped repeatedly before he took her- makes no sense. Lena freely admitted to committing crimes, she should have been arrested- she might have avoided prison by turning states evidence and plea bargaining, but the police would never make that decision themselves, they would put her into the criminal justice system. They also would never have allowed her into a crime scene. When Lena picked up the letter at the end, she ruined its value as evidence since after that there was no link to the car wreck; anyone could have written it at any time. She destroyed any fingerprint or DNA evidence on it by handling it.
To make your story really impactful I would recommend doing research on human trafficking, sexual slavery (not the same thing, human trafficking is broader), drug use and affect (drugs are used to control- get someone addicted and withhold drug if they don't do as they are told, and there are long-term effects of a lot of drug use), Stockholm syndrome, police procedure, foreign locations (Indians don't speak Indian, they speak Hindu and English), and probably other things I'm not thinking of right now.
Also, I think your book is crime fiction, not fantasy- no magic, mythical creatures, princesses, etc.
You've got a good solid foundation for your book so far, but it needs some additional work to make it as impactful as it could be.