Rose has just been pulled out of stasis by someone she's never met, only to discover that she's been in her stasis tube for 62 years, awakening to a world she doesn't recognize and can't understand. Everyone she's ever known is long dead, victims of the Dark Times that killed millions of people. She gives her name, Rosalinda Fitzroy, to the boy who rescues her, and he is shocked: the lone heir to the multinational UniCorp survives, after all this time? Rose's recovery in this new world is not easy: in her new school (where she is behind all her classes; she's always been behind in her classes), she learns the gruesome details of the Dark Times of plague and disease that she slept through; at home, she has the robotic assassin who has been carefully tracking her every movement. 
 But along the way she's learning things, coming to understand what happened to her; how she's only 16 years old despite being born a century earlier; what has become of Xavier, the love of her life, and how she could possibly be falling for a new boy before she's had closure from her previous one. There is a lot of creepy in these answers. 
 What's it like to wake up in a world you can't recognize, anyway? This may start out as a Sleeping Beauty retelling, but it's so much more than that. It's a bit clunky in the writing, certainly, but also compulsively readable and compelling. I didn't love most of the characters (I liked Otto and would have liked to have seen more of him that wasn't in Tell Not Show mode, but I still liked him and wanted more of his story), but I give the writer a ton of credit for not insisting on certain romantic pairings ((view spoiler)[even though there's one implied at the end, it's more a could-happen than a this-girl-must-be-partnered-at-all-costs (hide spoiler)]). 
 Readalikes: Across the Universe for suspended animation, Sleeping Beauty for all the allusions, Enclave and Boy at the End of the World for coming into a world radically different from everything one knew before, Reincarnation for love across time periods. High school appeal, mostly girls, for the whole romance-across-time thing.