@ MrTubbyguts honestly I can't think of what might happen 'cause you're keeping me on my toes with the story, except that I have a feeling Y/N will shut Snape's mouth, if he hasn't already. Suggestions, tricky stuff; Voldemort knows something about the atlanteans and tries to use that against Y/N throughout the first two books, Y/N and Mavros (I think that's his name) argue because of Mavros and Y/N differences when it comes to the world and war (later in the books clearly). That's all I got, I hope it helps