Firstly he knew it had to be a place in Hogwarts, if the room of requirement was still existing that was. Because the room was massive yet had distant stone walls. Covered in tapestries of various colors of the houses but not with any of the animal banners. Low couches and a low set of music which came from portraits of old musicians and enchanted instruments. What he realized that it was kind of full of people. All his age and up, all adults and each one had a small sort of stamp on their hand, along with him. Quite a few had masks, and various disillusions on them to hide who they were. People had cups with a low table full of colorful bottles of liquor, pitchers, and water. 