The Dragon Slayer's Treasure

It has been two and a half years since Lucy joined Fairy Tail. They are her family. Each and every one of them. When she starts feeling that something is terribly wrong she decides to keep it to herself. Soon her fears become reality. Someone is out to kill her. When Natsu realizes what is really going on with his partner will he be able to act in time to help her before it's too late? Will he realize how truly important she is to him before she's gone from his life forever...