I'm having my first time as a vampire in the game, and Falion in Morthal has promised me to cure me. I was told to meet him at a sort of mini-Stonehenge at dawn, and he would perform some ritual. But when I meet him there, he just attacks me and won't talk. All I can do is kill him... but then, he just wakes up again and continues fighting with a filled health bar. I can kill him again and again, but he never learns. He may be immortal but he certainly doesn't seem very intelligent.