Phoebe wanted to go and find out what was wrong, but didn't know if she should or not. Would Katherin want her interrupting?

 "Just freeze jack? the way she's looking, she could freeze the whole school. Katherin has a lot of power in her, even if she doesn't see that" she said softly, watching her friend, deciding to watch and see what would happen, but prepared to jump in if need be.