Major Spoilers Follow: The first two books were pretty good, especially the idea of Daybreak, the moon gun, etc. But in this last volume the good guys ignore several opportunities to disrupt the baddies, throw away their hard-won advantages and then just decide to quit. When the bad guys more-or-less win, the good guys just say, well, hell, maybe winning wasn't such a good idea anyway. At the very end the author, apparently at a loss to explain all this, suddenly reveals that, gasp, aliens were behind the whole thing. This is IMHO a major cop-out since one of the fascinating questions was how did anybody set up the whole "Daybreak" thing to begin with. After several hints that it was done by some group on earth, he suddenly drops the curtain and, hey-presto- it was aliens all along. A mega-disappointing end to a very enjoyable series.