When Buffy, Xander, Cordelia, and maybe Willow are in class, that vampire woman walks into the classroom. She tells Buffy that more will die unless Buffy comes to the graveyard that night. Then she takes off her ...head thing... and bursts into flames. I was wondering last night was possessed her to do that? If Spike, Dru or Angel said "Go do this." the vampire could have easily said ok and just skipped town. Even the undead seem to have a sense of self preservation. So, I started to think. Drusilla has some psychic abilities. Do you think it's possible she used those powers to hypnotize the vampire into going to the school, just like she did with causing Kendra to lower her guard.