It's not there

Emma heads back along the ailses of books, finally returning to where she left her skirt, only to find it gone.

"What the hell?" she mutters under her breath, looking around and for a moment wondering if she had come to the right spot.

She's certain she is and realisation begins to dawn on her. Without her skirt she has nothing to cover up with. Not only that, but with her skirt gone there must be someone else in the library.

"Hello?" she calls for a moment. "Very funny, haha, now please can I have my skirt back."