The last episode of Season one on her show. Basically her teacher was kidnapped and sentenced to be petrified, so Luz goes all out with her magic to save her. It's intense, and things only get more crazy after that season!

That makes sense! They didn't talk in Deerington, so Sarona wouldn't know that Luz had a pretty intense time there, enough things happened that Luz feels like she aged a few years and lost her "innocence."

Needless to say, this situation will put her into slight hysterics anyway, considering she'd been in a tortured situation before.