The King has Come Back
If this was some months ago, they wouldn't have reacted quite loudly as to stepping away and gasping in shock—both dragons and vampires. In this part of the world, they all still regarded the Rogue King as the weakest among the Kings of the Moon because of that old wizard's reputation. Even if they all knew that the Rogue King had come to the Frost Castle, they virtually didn't care.
Three years ago, they all heard how the Rogue King had pseudo-taken over the Shadow Territory for some reason. However, they never thought that the Rogue King's crest had changed hands recently. To be honest, even if Nicholai had the crest for so long, he made little movements as the Rogue King.