In this novel, a woman wakes up on a boat with no memory of who she is or how she got there. The boat is adrift, and everyone else on board is dead, including her, making the story even more intriguing.
If that's not the book you have in mind, please provide more details, such as:
* The genre of the book: Is it thriller, mystery, sci-fi, etc.?
* Other key details: Are there any other characters mentioned? Any specific location or time period?
With more information, I might be able to help you pinpoint the book you're looking for.