I read a book once where humans discovered an ancient space ship. The spaceship was run by a very advanced AI. To travel to distant places, it froze all the humans in place and disconnected itself from space-time. As a result, it would spend hundreds of thousands of years travelling to another system while no time passed. In fact, it would sometimes arrive slightly before it left.
I also remember that it included a woman that was going through some strange transformation and evolving beyond humanity.
EDIT: They left Earth in the space ship. I think the spaceship was actually discovered on Earth, but I'm not 100% certain.
The woman that was transforming was referred to as either princess or queen I think. (Priestess maybe?)
I'm pretty sure civilization on Earth was falling apart. Possibly from a major war about to break out.
Also, the ship was huge. A large dome covered a huge garden area which was mainly just the recreation area. It was an entire city in a spaceship.
I vaguely recall something about gold or amber related to the suspension of humans for the long journey outside of spacetime.