Basically it's about a rich family who goes underground as soon as a nuclear bomb apparently strikes, and they hide in a luxurious Compound that the billionaire father designed. The only problem is that the Grandma and the main character's twin brother, Eddy, weren't able to get through in time, so the rest of the family is devastated. ~,~
The Compound is set not to open for 15 years, so Dad, Mom, Lexie, Terese and our main character Eli all have to make the best of their living conditions. There are many rooms, and enough supplies to last them the whole time. But after 6 long years of routine and simply surviving, 15 year old Eli does something that breaks his routine. He looks into the room intended for his perished twin, and finds a laptop computer that has an icon for the internet. He tries to keep it a secret, but later he discovers that when he goes near his dad's office, an internet signal picks up, and he has an IM conversation with someone who is logged in with Eddy's old username. Dad takes the laptop away after this, but Eli's mind is still blown. What other secrets could his father be keeping from him and his family?
This is pretty much the plot of the story. I don't think I should reveal any more, because the rest of it is too good. For example, as Dave pointed out, there is a mysterious "yellow room" in which the purpose is at first completely morbid and revolting to Eli. At first, I was shocked at the thought as well. It really turns ethics on it's head. But once inside, he discovers that the room's inhabitants are wonderful and worth protecting, deserving of as much love as his family. He knows that he absolutely must get everyone out of the Compound and learn the truth, before it's too late. I hope this brief synopsis has aroused your curiosity, because this is one book that deserves a read.