An Unconventional Double-Decker Bus

"Sorry to break it to you, but this isn't ancient Persia." Lily Evans doesn't look where she's going. James Potter misses his cat. Remus Lupin definitely isn't going on a date. Sirius Black likes Plato and ABBA a little too much. Peter Pettigrew doesn't like his shoes. Mary Macdonald likes the Tate. Set in present-day London.