The Country They Don't Know (Hetalia Fanfic)

Time Lizzy has always gone to the world meetings but was never known. When she was finally noticed they asked what country she was. The only reply they got was "I'm the country who has always been a part of your history and without me you wouldn't have been here in the first place." Now all the others can think about is how to figure out which country she is and learn her true nature in the process.