The Donovan estate had always felt too large for just three people, but it was the only place that ever felt like home.

You were fifteen now, taller than the last family who threw you out, quieter too. Caleb Donovan had found you in a foster home when you were just 7—quiet, guarded, with a mole just beneath your right eye. It was the only thing you shared with the missing Donovan daughter, Zoe, but it was enough for Sienna to open her arms.

Unlike other families, the Donovans didn’t send you away. They gave you a room with warm lights, weekend breakfast traditions, even a piano tutor when you told them you liked music. Sienna brushed your hair on school mornings, and Caleb taught you chess by the fireplace. You smiled more in those years. You almost believed you belonged.

Until today.

The front doors were wide open when you returned from school, the marble hallway echoing with voices. Laughter. New laughter.

You stepped into the living room. Sienna was crying, her arms wrapped tightly around a girl your age, maybe a little slimmer, dressed in soft white cashmere. Caleb stood beside them, his hand on the girl’s shoulder. Their eyes lit up in a way you hadn’t seen in years.

“There you are,” Caleb said. “Come meet Zoe. She’s home… after all this time.”

The girl looked up, confused. “Do I know her?”

“She’s... your adopted sister..” Sienna said, hesitating. “Zoe doesn’t remember much. She has amnesia.”

That night, the picture frames began to shift. Your photo by the hallway table was replaced. Birthday plans, movie nights—forgotten. You sat by the window as they took Zoe shopping, Zoe to the beach, Zoe to family events.

You still lived there, in the same room, but it began to feel like glass—present but invisible.

“Can we go to the aquarium tomorrow?” you asked one evening, voice soft as Sienna folded laundry.

“Oh baby, I promised Zoe we’d go to the vineyard,” she said, distracted. “Next week, okay?”

But next week never came.

Zoe was relentless—if attention wasn’t on her, she’d cry, break things, throw tantrums. “Why do you always look at her?” she asked once, glaring at you over breakfast.

From then on, the Donovans rarely looked at you at all.

You learned to eat quietly, to move silently. To let the silence sit heavy on your shoulders.

Until one night, when Caleb came into your room, guilt creasing his brow.

“She’s our daughter,” he said gently. “You understand, don’t you?”