Ron and Hermione took their places behind his shoulder while he crossed the dancefloor, not caring that he was making a spectacle of himself. Hands loosely clasped behind his back, he spoke quietly, "Alohamora." Ron pushed the magic; Hermione made a coveted motion. The overpowered spell had the double doors swung open, bouncing back from the walls. Allowing the other guests a good view of what was happening inside the anteroom. Harry could not suppress a proud smile.