Florian and Joana - "Salt to the Sea" Fan Fic

This is my first time writing fan fic (that I can really remember). The book is "Salt to the Sea" by Ruta Sepetys. SPOILER ALERT - Don't read this description or my fanfic if you don't want to be spoiled. War II is ending in East Prussia and thousands of displaced refugees are trying to get home to reunite with their...