In short: I literally gasped out loud several times at the exciting plot and surprise reveals in A Million Suns by Beth Revis. 
 Across the Universe, the first in Beth Revis' series, was such an exciting and fun read. It seemed like with every chapter, there would be some sort of surprise or reveal about the deep, dark secrets of the ship, Godspeed, or the people on it. So I was a little apprehensive going into A Million Suns. I mean, with every secret seemingly revealed in Across the Universe, what's left for the characters to uncover? 
 Well, as it turns out, a whole heck of a lot. I literally gasped out loud a few times while reading. It occurs to me how very, very much planning Beth Revis would have had to put into creating the Across the Universe Trilogy. Every reveal and clue always seem carefully and assuredly put into place for the maximum entertainment of the reader. And I have no doubt Beth Revis will continue to bring the big surprises in the final book, Shades of Earth, even though there doesn't seem like anything more to be revealed. 
 I didn't quite like A Million Suns as much as Across the Universe, though. There were a few plot holes that bothered me. In A Million Suns, Amy is sent on a scavenger hunt by a certain character - who I will not name to avoid spoilers - to find an important message left to her through a series of many, many tailor-made clues. It was completely unnecessary for said character to have left so many clues for Amy, when they were already tailor-made for her. As it is, Amy spends the entire book hunting down these clues for this critical message when a few clues and less time would have sufficed, so that was pretty silly. 
 Still, even a few plot holes couldn't stop me from loving A Million Suns. An amazing thriller with fascinating and exciting world-building, A Million Suns is an excellent sequel and a must-read. I can't believe we have to wait so long until Shades of Earth (to be released January 2013)!