Remus's and Sirius's entire relationship from their 5th year till Harry's 3rd. Remus is studios and reserved and has never so much as looked in the direction of any of the girls at Hogwarts. Sirius is clever and mischievous and flirts with out really noticing he's doing it. Fast Forward: Remus is heartbroken and lonely and back in the paradise of his childhood. Sirius is vengeful and determined and has his priority's all warped.