Insect.

Ensoma was sitting inside the attending hall in a relaxed manner, it was not the first time that he had visited the duke. He had no reason to panic. However, one thing that stood out to him was that the Duke was taking longer than usual. He looked at a servant in the hall and asked, "Is the Duke busy?" 

His implication was, What's taking him so long?

The servant was aware of the identity of this man so he did not dare to brush him off, and said, "Sir, His grace is attending to the second prince of the empire in his study. The prince was inflicted by the charm spell of the enemy." 

The merchant was shocked, and he asked, "What did you say? How come the prince got inflicted when he was the person responsible for the final attack?" 

The servant was taken aback, and then he replied, "It was the other prince who helped His Highness the second prince." 

Ensoma was shocked even more by this, he could not help but ask, "What prince?"