While snooping around the lab, Arthur finds his wings, but they're in a locked case.
Arthur continues to rummage around the Cheese Hall, looking in various rooms. He finds a desk with a bunch of women's clothing in it, including the pink wig that Madame Froufrou had worn. Uh-oh…
He hears footsteps, so he hides behind some drapes. Snatcher is back. Arthur sees that there's a bunch of keys attached to his waistcoat, but obviously there's no way to get them.
Arthur makes it up the stairs and out onto the roof before anyone else from the returning hunt can spot him.