Prince Thomas, Princess Rebecca, and Alexander were political monsters. Some were better than others, but all three had received the best education humankind had to offer and had fought in that field for decades.
Moreover, the trio wasn't clueless. Khan hadn't shared everything with his relatives, and they knew better than to ask. However, they had done their separate research, especially Princess Rebecca. They were aware that the Nak and Khan harbored a secret, which he seemed ready to share now.
Therefore, despite some surprise and curiosity, Prince Thomas, Princess Rebecca, and Alexander's façades didn't waver. The trio retained utmost seriousness, pretending to have always been aware of the matter to create a united front against the Kros.
Meanwhile, the Kros were utterly lost. The unreadable writings inside the enneagram scrolled faster than ever, probably processing any information that could shed light on that mysterious request, but their records had nothing conclusive.