Remus Lupin is a very private person. Sirius Black is not. When an experimentation with a Legilimens spell works perfectly well, on the perfectly wrong target, Sirius becomes subjected to the live narrative thoughts of the complex enigma that is Remus Lupin. Maybe in tales of questioning unrequited love it isn't always easier to read their mind. (Marauders era / Sirius POV)
It's the trio's fourth year at Hogwarts and this year, as well as the Triwizard tournament, their school is running an exchange program with it's Australian counterpart. Isabelle Allaway, half-blood and cousin to Hermione Granger is selected for the eight week trip, where she will stay two weeks with each house, turning more than a few heads...