Hey I was wondering if there are any fics where Spike deals with Faith in season 3. Something maybe like... Buffy and the gang are having lots of problems with Faith in season 3 and it is looking pretty bad. Buffy, or anyone really doesn't matter, calls in an expert in the area of Slayers. Whether it be by choice or some other motive Spike helps the Scoobies with there rouge Slayer issue.

The Curse of Immortal Love by midnightjen has Spike asked to deal with Faith in a permanent way, he is with Buffy and it is her request.
Buffy left with Spike at the end of season 2. a curse and a vampire who doesn't know the meaning of no have them back in sunnydale with old friends and new enemies.