Dunno. Maybe real life pulled them away, or they just got bored. DreamOrDestruction is still active, despite the fact that he doesn't post much on the OOC, and since you've been accepted and are good to post I think it's safe to count you, although I wouldn't really count myself there so it's right back to 4. Even if advertising doesn't net any new players though, there have been plenty of small RPs with only 4 or 5 players. As long as you guys stay active, you should be fine with just that. A party with a mage, rogue, paladin, and ranger seems decently balanced, too.