Possesion

Harry mistakenly falls back in time to his parents' sixth year. He strives to get along with the Marauders as Dumbledore searches for a solution to returning Harry to his own time. However, Harry falls in love with a certain godfather of his, and finds himself not wanting to return.

The trio are mysteriously led by a strange 'Horcrux tracking device' to find out what the last horcrux is. Strangely enough, it leads them to a toilet cubicle...