The way your thoughts scattered while in the hallway sounds like this creature acts a bit like a mind flayer.

Daniel and the other student both acted the same way when the scratching started too. Paranoid, scared, and distraught.

I think you've found a common line Ashley, but definitely call the old sheriff and/or Daniel. You may need some backup or advice here. They're going to be upset, but they will also have to understand that there is something bigger going on here. Almost like a war between old creatures and new creatures. You've been pulled in for some reason, but that itself isn't exactly clear just yet.