In Rick Yancy's, "The 5th Wave" the main character Cassie is described in a peculiar way. The novel describes her in two ways, the old Cassie and the new Cassie. The reason there are two sides to this girl is because the arrival of the others has dramatically changed her from what she once was.

        The old Cassie wouldn't of cared about aliens coming down to earth and wouldn't bother to find out more. she cared more about boys and other things that all girls pay attention to. But when the others came about, her normal teenage self went away and her survival instincs came in.

      She become something she wasn't. But I guess that's what it's come to. Changing yourself in order to survive is a must if you want to live in this world. Cassie finds new things everyday and she is constantly looking for other humans or "the others".
   
      Here's the trailer for the third wave out of the fives different terrors.

      Rick Yancy has created a novel that has left me spinning about all the characters and their actions they must take in order to overcome the others and bring back civilization to earth. I can only hope for both the old Cassie...and the new.