I have two mainsprings. They're wound - re-tightened - with the same key in the same opening. They don't power my whole body, there aren't gears in my fingers and toes. Those rely on static electricity.

[She hesitates. Vögelein doesn't remember to be shy of strangers, but she retains something of her unhappiness at having to ask. She also tends to have an expression that's very broad and easy to read, like a stage actor; she has only ever known humans, and they need to be able to tell how she feels.]

...I still know quite a bit about my own workings. I know if I'm not wound regularly - every thirty-six hours, but every twenty-four is better - I'll die. I'll lose my memories and then die, but I think that's not what happened here.

None of these are the key, my key, but... one might be similar enough to work. If you would help me.