Mark adjusted his navy tie as he hurried toward the grand staircase of his Connecticut estate. The anniversary charity dinner was set to begin in less than two hours, but something felt entirely wrong inside his home.

Down the long, white-paneled corridor, his seven-year-old daughter Emily knelt on the polished hardwood floors.

Mark: Emily? Sweetheart, what are you doing on the floor?

Emily: Shh, Daddy! You can’t talk so loud. She gets scared easily.

Mark walked faster, his polished dress shoes echoing sharply against the pristine white wainscoting.

Mark: Who gets scared? What is that plate doing there?

Mark’s wife, Victoria, stepped around the corner in her elegant black silk gown, her diamond necklace catching the chandelier light.

Victoria: Mark, please tell your daughter to stop ruining her dress. The photographer will be here any second.

Mark: Victoria, hold on. Emily, look at me. Who are you feeding?

Emily: She said she’s hungry, Daddy. She’s been in there for days and her tummy makes loud rumbling sounds.

Emily gently pushed a porcelain plate loaded with sliced bread against the low, white metal vent cover.

Victoria: It is just her imaginary friend again, Mark. Children make up nonsense all the time to seek attention.

Emily: She isn't imaginary! Look!

A faint metal clank rattled through the hallway baseboard. Mark froze.

From between the bent, narrow slats of the heating vent, a tiny, pale, trembling hand reached out into the daylight.

The small fingers seized a crust of bread and dragged it back into the pitch-black wall cavity.

Victoria: Oh, my God!

Mark: Stay back, both of you!

Mark dropped to his knees, his tailored suit trousers grinding hard against the wood floor. He leaned down toward the dark vent opening, his heart hammering against his ribs.

Mark: Can you hear me? Can you tell me your name?

A soft, terrified whimper echoed from the hollow framework behind the drywall, followed by ragged, choked breaths that made Mark's blood run ice-cold.