It may not quite be time for tricks or Halloween costumes, but that doesn't mean you can't avail yourself of a few treats this weekend. Here are a few Fairfield events that might scare up your interest:

Friday night head over to Fairfield University's Quick Center, 1073 North Benson Road, for an 8 p.m. performance by the Alternate Routes. Tickets are $25 for the general public, $20 for university alums, $5 for faculty and staff, and free for Fairfield U. students and those registered for Alumni & Family Weekend. Call 203-254-4010 or visit www.quickcenter.com for more information.

The "Enchanted Castle," a Fairfield Halloween tradition that offers a gentler, storybook take on the holiday, opens Saturday and runs through weekend and into next. The historic Burr Manion, 739 Old Post Road, is magically outfitted in decor and characters from children's fables. The event benefits the Ahlbin Centers for Rehabilitation at Bridgeport Hospital. Weekend hours are 10 a.m. to 5 p.m. Saturday and Sunday. Admission is $5. For the complete schedule through the coming week and next weekend, see http://www.enchantedcastle.org

Take steps to prevent identity theft Saturday and bring boxes of outdated and unwanted personal documents to Police Department headquarters, 100 Reef Road, for the Fairfield Police Explorers "Shred Day" from 9 a.m. to noon. Cost is $10 per copy paper-sized box. For more information, call 203-254-4800.

Spend the morning hearing extraordinary stories and seeing other-worldly evidence from the Connecticut Paranormal Research Society at 11 a.m. Saturday at the Fairfield Woods Branch Library, 1147 Fairfield Woods Road. Admission is free. Call 203-255-7308 or visit www.fairfieldpubliclibrary.org for more information.

You can buy a pumpkin or bring your own for creative carving at the annual Pumpkin Carving Festival on Sunday from 1 to 5 p.m. at St. Paul's Episcopal Church on the Old Post Road, next to Town Hall Green. Refreshments will be available. Sponsored by the church and the Old Post Road Association, proceeds will go toward beautification of the Old Post Road area and the St. Paul's Youth Group. For more information visit www.stpaulsfairfield.org

Round out the weekend with a concert of two pianos by Andrew Russo and Frederic Chiu at 3 p.m. Sunday in the Pequot Library, 720 Pequot Ave. Tickets are $25 for adults, $10 for college students and $5 for youths. Co-sponsored by the Westport Arts Center. Tickets are available through the arts center or at the door. Pequot Library Association members get a 10 percent discount at the door.