Oh, it is... well, I usually need to touch them and be looking for it. If it is hidden, it is harder to find, but when in active use easier, and especially if I know someone to be a magic user.

Why, does Luke...

_{[ He looked at the boy, blinking in surprise and wondered how he did not really expect this before. Of course the boy had magic considering Vanyel's own blood and Duke's. Two of his other children (well, not really is, but by blood his yes) were very magical, so Luke should not have been a surprise. ]}