Leave the bra

Having spent most the arousal you have her Emma panics about the idea of running naked past the window and slowly walks through the library stacks, heading back to where she left the remainder of her clothing.

As she reaches the book cart she was working from she freezes. There is no sign of any of the clothes she removed. Suddenly moving again she darts between the stacks, hunting high and low for her lost clothing.

Knowing that she didn't move the clothes she begins to panic that there is only one other explanation. There is someone else in the library with her.