The reason why the world of Crepuscule is so unstable is because Karmilla was prevented from sacrificing her self by that Gilles de Rais bastard.
Karmilla began the process by dreaming it into existence, but was stopped halfway before she could sacrifice herself to complete it. They are actually living in her dream, and not a real construction like she planned. The crystal that Seere described seeing her in, is actually a prison of ice created by Gilles (his ability utilizes ice).
Also, since Karmillla was unable to provide the power needed to permanently sustain it, the world is constantly leeching what it needs from the younger generation of hybrids. That is why they suffer from shorter lifespans and diminished abilities when compared to the purebloods. When the world becomes severely unstable, it draws the necessary energy from a pureblood, causing it to continually bleed out and sending them on a rampage. The rampages could also be caused by Gilles deliberately since he seems to have some sort of control over Karmilla.
It was for these reasons, that Gilles feared Angela and wanted her out of the way. He was afraid that she would discover this during the course of her research and expose his perfidity.
I don't think Angela is really dead, but she is sleeping like she had for 200 years after being mortally wounded during the Erzbets clan leaders original rampage. I don't think we will be seeing her again, until the end of the series. T_T
I also think that Lark is really a powerful dream created by Karmilla, There is not enough information avaiable to understand how he ended up with human parents, but I believe he was created by Karmilla in order to help free her, somehow.
They don't need to liberate the world, they just need to free Karmilla so she can finish what she started all those years ago. Then the world will no longer be unstable, and everyones lifespans and abilities will return to what they normally should be. Lark will probably be made into that permanent reality as well, so he doesn't disappear when Karmilla dies.
It will probably all end with Angela waking up a few hundred years later, incredibly surprised to be greeted by everyone including Lark.
The End. =P
Edited by Hindo, 15 February 2013 - 04:22 PM.