If his servant was under the impression that he could spy on him without being discovered then he was grossly overestimating his abilities.
He was simply too weak to even think about eavesdropping and going unnoticed at his current level.
King Zander had already sensed his third aide's presence the moment he had entered the Palace grounds.
He had also found out about the werewolf who had come along with him.
Though there were doubts in his mind regarding this unlikely pairing, Rein should know better than to associate with the General more than what was necessary.
Just as he was scoffing at his servant in his mind, he sensed how the aide walked away in a haste, leaving the General behind.
Realizing that Rein was still sensible enough to know right from wrong, a snarky but satisfied smile appeared on his face.