Cal's next words are merely interesting at first- a group of magic users, devoted to something like the Charter. The last word, however, throws her for a loop.

"I've never heard of the Jedi before, but- galaxy? Are you saying you've been to different planets?" Sabriel stares at him in wide eyed wonderment. Perhaps he simply mispoke, or perhaps he's from a world like some of the wilder magazine stories her friends read.