The Fall of Five (Lorien Legacies #4) (out of print)
I thought things would change when I found the others. We would stop running. We would fight the Mogadorians. And we would win. But I was wrong. Even though we have come together, we barely escaped from them with our lives. And now we're in hiding, figuring out our next move. The six of us are powerful - but not strong enough to take on their entire army. We haven't discovered the full extent of our Legacies. We haven't learned to work together. Time is running out, and there's only one thing we know for certain: We need to find Number Five before they do.