Lucas was unsurprised when Lilith broke through to the Adept Mastery.
The Apprentice Mastery was when you learned all the basics of a certain comprehensive knowledge.
While the Adept Mastery focused more on the in-depth understanding of the individual subjects.
For instance, the Mastery of Archery.
The Adept Mastery of Archery focused more on longer distances with perfect accuracy and precision.
It was what Lilith had achieved.
But things would now be difficult for her.
Since the Expert Mastery of Archery would focus more on speed while maintaining consistency.
The distance was still the same, still fifty meters or less, but the speed must be twice or preferably three times faster.
From nocking the arrow to the bow, aiming, and then releasing it.
All must be achieved rapidly.