Re-posting. Ed, Al, and the Golden Trio enter Sixth year while Winry enters Seventh year. Hohenheim finally appears!

When Gray goes out on a seemingly plain mission, things go very wrong and he meets a stranger. As it turns out, worlds are crossing into each other and people are crossing over. What will happen when Elrics and co meet Fairy Tail? And who is this mysterious girl who saved Gray's life? What secrets does she hold and is she a friend or foe?