Harry's Sixth year is just around the corner and he eagerly awaits the day when he's able to go back into the wizard world, only when he does he meets a new member of the order who has a stronger connection to Lupin then their condition. Book 5 Spoilers.
Lupin is sent on Order business to help counsel someone, only he isn’t in the mood for helping out people much anymore, and he has a lot of other things on his mind. Book Five Spoilers.