Costumed revelers prepare for trick-or-treating by going as Abby Sciuto (from the NCIS TV show), Edna Mode (from the Incredibles) and Steve (of Blues Clues). Photo contributed by Ana Marie.

Michael Myers awaits his next victims on 37th Street next to McKinley Park. Photo courtesy of Victoria Rodriguez.

Students and parents participate in Trunk or Treat at Nathanael Greene Elementary School on Tuesday, Oct. 30.

Trick-or-treaters visit one of the many decorated houses in the McKinley Park neighborhood. Photo courtesy of Victoria Rodriguez.

Trunk or Treat draws throngs of kids and adults to Nathanael Greene Elementary School.

The hosts at one of the neighborhood's notorious annual Halloween parties greet revelers on the Saturday night before Halloween.

Trick or treaters plan their next move in the McKinley Park neighborhood. Photo courtesy of Victoria Rodriguez.

Steve of Blues Clues runs into Indiana Jones while out trick or treating in McKinley Park. Photo courtesy of Ana Marie.

The "Rasta Hound" gets into the Halloween spirit. Photo courtesy of Jim Hankes.

The costume contest's ringer, lobster baby Arch Harvey, sits surrounded by family, friends and fellow contestants at the Hoyne Park Advisory Council costume contest.

Kids at the Hoyne Park Advisory Council Halloween party enjoy candy, including the highly coveted full-sized Skittles.

Hoyne Park Advisory Council officer Darrell Daulton announces the judges' difficult decisions to pick the winners of the contest.

Friends of the Hoyne Park Advisory Council enjoy treats, popcorn and apple cider at the Halloween party.

Family and friends anxiously await the results of the Hoyne Park Advisory Council's costume contest.

The winner of the 7-and-up category in the costume contest, Mateo Cabral, stands at attention with his dad, Roberto Cabral.

Halina Kurtansky, the winner of the 4-to-6-years-old costume contest category, shows off her Good Witch costume with her dad, Peter Kurtansky.

Proud dad Mike Harvey presents lobster-costumed Arch Harvey, the winner of the 0-to-3-year-old category in the Hoyne Park Advisory Council costume contest.

Elliott Flores prepares for action as a stormtrooper at the Hoyne Park Advisory Council Halloween party.

Runners Katie Wenzel, Stephanie Lopez, Melissa Hinkson and Shauna Stimson get ready inside the field house for the 5K run.

The young Ms. Moser awaits transport in her parent-powered conveyance.

McKinley Park Advisory Council officers Katie Flores and Veronica O'Malley sign up registrants for the 5K Fun Run/Walk.

Frandy and Heather Breems show their Halloween spirit in their runners costumes.

Miguel Bueno and Coral Duarte prep their pup for the 5K.

McKinley Park Advisory Council officer Heather Breems outlines the course around the park to Fun Run participants.

Partcipants in the McKinley Park 5K Fun Run/Walk step off to start the race.

Big Jenga players and MPAC fans include Benjamin Dimoch, Kate Ulschmid, Cassie Pontone, Jorge Alejanbre, Lindsay Washburn and Steve Adkind.

MPAC fans and volunteers Nicholas Efrosinis, Fiona Cook, Kate Moser and MPAC Treasurer Heather Breems enjoy drinks and conversation at the fundraiser.

Dozens of fans of the advisory council nosh on pizza, quaff Lagunitas brews and network at the fundraiser.

McKinley Park Advisory Council supporters, including Theresa Mah, center, and David O'Malley, right, enjoy the event and company.

MPAC Vice President Samantha Hertel and John Belcik smile at the success of the event.

MPAC Vice President Samantha Hertel and President Veronica O'Malley raffle the many prizes donated to benefit the park and its programs.

MPAC fans and volunteers take a break from pinball: left to right are Skyler, Corenna Roozeboom, Justin Kerr and MPAC Secretary Katie Flores. Photo by David O'Malley.

MPAC President Veronica O'Malley and Queenie Chong enjoy the party vibe at Lagunitas Brewery. Photo by David O'Malley.