A Marked Man Sebastian, a former vampire, has a lot to learn about being a human again. Teake, the witch responsible for making his undead heart pulse with life—literally now the other half of his soul—has spent the last couple of weeks trying to teach him. Seb decides that Valentine's Day is a very good opportunity for the student to show the teacher how much he's learned about the very human trait called love. With a little help from a few of Teake's magical friends.