C647 The cause of death of the sphinx

"What is the Emperor doing here?" Lei Yue raised his head and saw Qin Ao standing at the entrance of the study room with his arms crossed in front of his chest, unperturbed.

"I came here to thank you. It was all thanks to you for that matter." Qin Ao's feelings towards Lei Yue were very complicated. On one hand, he was grateful for's help, and on the other hand