Val was still sitting on the floor, his legs bent in front of him. He stood up and smoothed out his finely patterned robe with his gloved hand. "Yes, the next section of your training will be on energy control. To work on that, we'll have to go back to standard defense magic for a while. I hope you won't mind".

"Not at all", Adrien smiled. "What should I do this time?".

"Are you acquainted with the theory of energy control?", Val asked.

Adrien's forehead wrinkled. "I know a couple things, but -- no, not really. Sorry", he muttered.

"You don't need to apologize - you're here to learn", Val smiled with his eyes. "Then, let me start with a question: what do you think control means, in this case?".