Smile?

Magnus was silently walking after the emperor heading to his majesty's room that was on the last floor of the royal palace.

The true blood could literally feel how fast his heart is racing inside his ear. He still can not believe that the emperor is taking him to his bedroom since he knows that brodalisques are only allowed to enter the pleasure room with Octavius and also are not allowed in Octavius' royal chamber which is why he can't lie and say he is not excited to know the reason why his majesty is doing this.

Octavius seemed to be very calm while walking toward his bedroom. The reason why he asked Magnus to follow him to his bedroom was that he is trying to follow his mother's advice and spend some time with Magnus just like she asked him to do.