I've only read one book, the first.. That story where just EPIC! But I'm mostly into the Halo Games :3
The Covernants wanted to exterminate the human race for not beliving in what they belived in, but now they are beaten.
So now "only" The Forerunners remains, probably stonger then ever. I belive The Covernants where a small threat compared to The Forerunners, comeon.. THEY buildt the Halorings that could destroy larger parts of the galaxy.
Master Chief have proven himself to be the humans true hope. So this new trilogi, I think is gonna be more intense and epic <3
Cant wait till winter 2012 :3
Master Chief! <3