If anyone has guessed already, the three mages were no other than Myrene, Lilian, and Flarion. Cerulean and Knox remained in their hiding spot in the forest in case something happened they could serve as a backup. If something occurred outside the mansion, they could inform Myrene through the communication orb as well.
They used another disguise for themselves so that the prince wouldn't recognize them. And even altered their voices, since the prince already knew too much about them.
Lilian was now channeling mana to the duchess. After she vomited, the mana inside her body had greatly weakened.
"14, we must hurry." Lilian said as she looked at Myrene.
"I know. Flarion, Lilian, no matter what, do not allow anyone to disturb me until I'm done."
"Yes," Lilian said while Flarion nodded his head once.