Khione

Khione is the Greek goddess of winter, sister of Zethes and Calais, and daughter of Boreas, god of the north winds.

The Lost Hero
When Jason, Piper, and Leo see Khione in Boreas' palace in Quebec, Piper and Jason find her personality to be cold and proud, all except for Leo, who had a crush on her and even still has feelings for her after Jason and Piper explain how cruel she is. When Boreas suggests that he could make them ice statues, she seems very inclined to the idea, suggesting that she might like Jason. In the end of The Lost Hero, it is revealed that Khione betrayed the three demigods by joining Gaea in her conquest. Leo throws fire at her but she disappears. She supposedly melts, but it is undetermined if she is gone for good. She seems to be smarter than her brothers and is vain.

Appearance
Khione is is very beautiful and proud-looking. Her skin is unnaturally white and pale, like snow. She has dark black hair and cold coffee brown eyes.

Trivia

 * Even though it hardly ever snowed in Greece, they still had a snow goddess.