"Probably just because there isn't anywhere to find a focus in your home!" Agatha replies. "After all, you can use Shaping without a focus. So if your world doesn't have them then no one would ever know about it."
Actually makes a lot of sense.
Agatha leads Hildur into the abbey and up to the second story of the building.
Must be where the library is.
"Tera is kind of grumpy," she warns. "So we have to be quiet."