"Do you know why we've been summoned to the palace?"
The other two shook their heads in response to show that they didn't know anything.
After all, all three of them had been completely caught off guard when they received the invitation from the royal palace.
These three were the heads of the three founding families, so they naturally knew what had happened in the palace this morning. Only they couldn't do a thing about this since they had already tried to interfere and failed.
If they had done anything else, it would have only blown up in their faces and offended the envoy from the Mu Empire.
Though it did eat them up inside to see the royal family being able to get closer to the envoy from the Mu Empire.