Kidnapping the Archduke?

"My loyal aides, this is why I need your help." Thales smiled.

Putray helplessly sighed. "You're a truly empathic prince towards your subordinates." 

Thales concealed his guilt with a dazzling expression and beamed. "Thank you, Lord Putray Nemain."

His attendant, Wya Caso frowned. Applying pressure on his rib that was seriously wounded by the vampire, he said, "According to your theory, if these five archdukes face King Nuven in the meeting hall and act unanimously without a single weakness to be found in their behavior… How are we going to identify the murderer then?"

Putray's gaze wandered, but Thales knew that this was his 'thinking' expression. "If the murder of Prince Moriah was intended to weaken the Royal Family, namely the Walton Family, then just like your intended murder by the hands of Lampard, it is also to weaken the current favorite for king selection, the Lampard Family. Additionally, it is also to cause… war?"