"Well, it seems a bit foolish, really. We went to Cain's world and time, but didn't really plan a way to get back."

She looks sheepish at this, as if expecting to be scolded.

"We tried opening doors at random, and nothing worked. So I used the spell you gave me."

Again, she pauses, expecting Magius to give her a 'look' for attempting such a big advancement without the protective spells he'd wanted her to have.