Summary: Harry, Ron, Hermione and Ginny find themselves in a Muggle hotel in Godric's Hollow on the Winter Solstice. During an enthusiastic snowball fight, Harry and Ginny step through a stone circle that transports them seventeen years into the past. This may be the only chance Harry has to spend with his parents, and it may also be what he needs to figure out his relationship with Ginny.
The warning is for later chapters.
Edit: So, this was originally strictly a Harry/Ginny fic, but Ron and Hermione kept trying to get together too, so I felt like I had to change the category. And there's a bit of Lily/James in there too, though they're already married, and I've also added a bit of Remus/Tonks. Poor Sirius is the only Singleton (though he may manage to get a girl of his own)!
Edit: This story was cannon until after Deathly Hallows came out, so I changed it to Alternate Universe, but it's still pretty close to cannon. Only a few things will end up being different when the story ends.
Edit: I've changed all of the chapter titles to the titles of Christmas songs that I felt reflected the events in the chapters best. Tell me what you think! Does it fit?