Review from Goodreads:

A love out of time. A spaceship built of secrets and murder.

Seventeen-year-old Amy joins her parents as frozen cargo aboard the vast spaceship Godspeed and expects to awaken on a new planet, three hundred years in the future. Never could she have known that her frozen slumber would come to an end fifty years too soon and that she would be thrust into the brave new world of a spaceship that lives by its own rules.

Amy quickly realizes that her awakening was no mere computer malfunction. Someone - one of the few thousand inhabitants of the spaceship - tried to kill her. And if Amy doesn't do something soon, her parents will be next.

Now Amy must race to unlock Godspeed's hidden secrets. But out of her list of murder suspects, there's only one who matters: Elder, the future leader of the ship and the love she could never have seen coming.
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My review:

Because it's such an awesome book, a combination of all my favorite genres along with Beth Revis's writing style, it has earned a 5-star rating from me :)

The story opens with Amy and her parents preparing themselves to be cryofrozen  into Godspeed, a ship that's on a mission to go to another planet and colonize it. Or at the very least, survive it. Unlike her parents who are actually really looking forward to the new planet, Amy just wants to stay on Earth and live. But because she wants to be with her parents more, she goes through with it. 

The next chapter opens in Elder's POV. Elder is a guy who is being trained by a man called Eldest to become the Eldest after he dies. Elder soon discovers another one of the secrets that Eldest has kept from him: the cryo level. It is there that he finds Amy, who looks like a frozen sunset in her cryochamber. Then they find her awake and trying to break out of her chamber. Someone has unplugged her from her frozen sleep and that someone is most-likely the one who has been unplugging the others too.

Amy's awakening is just the beginning. The rest now lies beneath Godspeed's secrets and the lies that hide them all. When they finally discover the truth, they must make new choices. Is the truth worth risking all?

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I totally recommend everyone to read this book :)