Weird dream last night. Need help!!!?

alright last night i had a dream that i was at my school. I was sent to the library, and now relise that it was my actual schools library not some dream library. I went to see the library teacher person and i saw a superhero i never saw. Then he muttered. "run kid" And dissappeared. i turned around to see this one kid who was running around ducking down so i couldn't see him. Then i got closer and relised he was like a zombie... but he had fangs, like a vampire. Anyways, he was really slow but when i got to far away he reappeared near me. There is a princible intern at our school who i saw in the cafe. I said something about blocking the doors. He asked why and saw the zombie and screamed something into a mic. So then i guess he pulled the fire alarm, but what happened is i ran and the zombie grabbed me. I shut up for a second then screamed as he went to bite me. Then he acted like a baby and smiled like it was a joke. then the fire alarm rang and the guy turned evil... then i woke up.