Don't worry, you're doing your best. If that ghoul thing hasn't killed Prof yet, maybe it won't for whatever reason. Because of his ignorance or because it's not immediately malicious at the moment. I don't know if that extends to you, though.

The Rain Chasers being back is very, very bad though. They're never going to believe you if you try to warn them. Even if you get your friends to help, they'll think you're trolling them or something. But, there must be some way to get the warning across somehow. Inviting someone to see the possums or the library ghost or something to show your credibility maybe? If something isn't done, they're fodder for whoever started the club back up. And you need to find out who did it.