The Lost Targaryen

Y/n Targaryen is traveling back to Dragon Stone after hearing news of her younger sisters return. Daenerys, Jon, and Tyrion are in for a surprise when she arrives.

How will Daenerys take the news of her sister and what she has brought with her? Will it be welcomed or turned down?

Jon and Tyrion will have a giant shock in their heritage. Will they deny or believe the girl who has shown up on the shores unexpected and possibly unwanted?

This is a one or two chapter story, theories are used as well. Spoilers too for those who haven't seen the recent episodes.