Athena is different than the rest of the Cullens. She isn't a vampire like the rest but she is different. She has powers, unlike any other person or thing. Carlisle calls her a witch but she just calls herself special. She has a lot of powers; she can read minds like Edward, see the future like Alice, see people's past, cast spells, feel people's emotions, and can heal small wounds. Sometimes these "gifts" can be curses. She can feel everyone's emotions if she is near them. Also, she sees bad things in the future, which her small, pure brain can't handle. Athena is someone different, and she likes being different.