Once upon a time, a young girl woke on Christmas morning, a broad grin stretching across her face as she bolted from her bed. She flew down the stairs, stopping before the glittering Christmas tree. The little girl ignored the presents under the tree, locking her gaze on the hanging stockings packed with goodies. She picked up her stocking and found a thread trailing from its edge into a nearby closet.

She eased the door open and followed the thread...