Josie tosses a book into a classroom cupboard without looking and is startled when a voice cries out in pain. She opens the cupboard to find Sammy, who lives inside and has adapted to be unseen. Sammy questions why she has never been seen before if she has lived there as long as she can remember. When Josie is called away by another student, she turns back to the cupboard to find Sammy has disappeared without a trace.