"What do you mean by that?" Even though the king asked this question, he wasn't actually looking for an answer from the soldier.
That was because not only the king, everyone in the room already knew the answer to this question.
After all, there was only one place that wyverns could come from.
So for wyverns to suddenly show up in their territory and attack them like this, they knew exactly what the reason was.
The soldier didn't know how to respond to this question since he knew that it was a rhetorical question. At the same time, he knew that if he were to actually say anything, all it would do is make the king angry with him and he would suffer the wrath of the king.
So the soldier smartly kept silent and didn't say anything.
But even if he remained silent, it wasn't as if this matter would be swept under the rugs.