A Million Suns #2 by Beth Revis
I was blown away at the awesomeness of Across the Universe and I cannot wait to see what happens next with the ship. I'm already thinking about pre-ordering the next installment even though it won't be released for a few more months.
January 12th 2012 ;; When Elder learns harrowing news about the space ship Godspeed, he and Amy must work together to unlock a puzzle that was set in motion hundreds of years earlier, all the while dealing with the romance that’s growing between them and the chaos that threatens to tear them apart. It all boils down to one mind-bending conclusion: They have to get off this ship.