Everyone followed Quinn as he walked out, but he wasn't heading down the stairs or anywhere else; he was, in fact, walking towards his balcony, a space where the king would usually make a speech.
Upon reaching the balcony, Quinn looked down and could see all of the vampires had left their inner castles. They were now standing in the pooling area, all looking up at Quinn as if they were expecting him to make a grand speech.
Seeing them all there, Quinn found it strange. This was something he had never ordered; he just wanted them to be ready for the move, so he could only guess that it was something that Fex had arranged.
His hunch was right, and Fex had made sure to make everything more flashy than Quinn would have preferred.