"I'll s-stay, just change me back." Amy, begging.
"You don't have to worry about that. Now, I will have to make a few modifications to you first, nothing I can't reverse." moving behind Amy and pushing something into her back.
"W-What was that?" her voice full of fear as she felt...cold again. That same far too nice chill.
"Well, the store's open 24 hours a day. And I need you to be on duty all the time. And knowledgable about how things work in the store, so, I made a few changes."
"Changes?" Amy finding her voice losing its stutter, the faint sound of a ticking beginning to fill her as she could feel the air on *something* in back of her. Turning her head, she saw a key. A large wind up thing, slowly turning. The man gripping it with both hands and turning it counter-clockwise, a feeling of being owned filling her. Alien and foreign yet resonating deep within her core. "You made me a doll master?!" her mind and voice involuntarily adding the word master to the shopkeeper. No matter how hard she tried, her polite voice was unable to convey her shock and horror, only the slightest tinge of worry could be heard in it and be seen on her too perfect face, growing almost younger looking and certainly gaining an artificial quality to it.
"I did indeed." putting a frilly headdress, that same white and black, onto Amy's head. She could feel it, the dress, beginning to push into her, grafting itself to her now porcelain body. She could hear the slow ticking of gears as she moved, feel Master's hands on the key on her back, winding her up more as that feeling of servitude and obedience filled her again, washing over her like a wave.
"Master, will I be a doll long?" some fear and a hint of hope in her voice. Maybe it'll only be a few days, not even noticing how the word "Master" was firmly ingrained in her mind.
"A few days. Maybe more. You'll be a good doll, right?" another turn. Another feeling, resonating so deep inside of her. If she's good then Master'll change her back, right?
"I promise Master!" trying to sound as hopeful and obedient as she can. If she's good she'll be changed back and then she could see Lina and her family again!
"Good girl. Now mind the shop while I'm gone~. I'll be back tomorrow to wind you up more." turning and, in a flash, gone, leaving Amy alone in the magical shop.