Don't be too frightened if you see a zombie or witch out roaming around this weekend.
Halloween has just started a little early for some trick or treaters.
The Peoria Zoo in Glen Oak Park is hosting an event called HowlZooWeen.
The spook-tacular event includes trick or treat trails, pumpkin rides, and a daily costume contest.
The event has been going on for nearly thirty years and this year organizers added fire spinners for some extra entertainment.
"We do have the building open so you can see snakes and spider-monkeys and fun things like that," said curator of education at Peoria Zoo, Jill Roderick. "There's magic shows and everything, so it's kind of a one stop shop. You come in, you get a huge bag full of candy and then you can go home and enjoy it."
Zoo officials say the most attendance they've seen is 8,000 goons and goblins, and are hoping to see even more this year.
HowlZooWeen continues tomorrow night from 5:30 to 8:30pm.
The costume contest begins at 7.