Chapter 400: Challenge Book.

Yang Dao went inside the room and laid down on the bed. He was going to sleep. The Dao Resonance cost him energy. The energy was not normal energy but source energy. Thus the rest was important. Amber had long turned to her ring form and rested in his hand normally. 

Feng Yun had followed him back and was now sitting on the sofa inside the room as she watched the boy sleep. She had instructed the people in the kitchen to prepare a lot of food. Although the boy was sleeping and he was tired, he could still get up to eat and restore his energy. Eating was the best way to restore his energy. 

Everything in the world was made up of source energy and food was the best-balanced diet to restore this energy inside the body. The staff of the flame palace was very happy and eager to serve the new king.