C451 A Thief Cries out to Catch a Thief

The assistant and a few bodyguards groped around the pool for a while before he said with a frown, "Director of Dining Hall, this wall is empty, we can't find any mechanism to open it."

The bodyguard's hand happened to be on the wall of the pond in the direction of the manor wall. The sound was clearly different from the other sounds, it was empty behind it