Where the Ghouls Are

Halloween specters will be out and about in Upper Marlboro tomorrow and Saturday for the "Mayhem in Marlborough Ghost Walk." Darnall's Chance House Museum will offer spooky, one-hour walking tours through historic Upper Marlboro. Costumed guides will lead visitors through the town; expect to see Colonial spirits and scary passersby. The program is not recommended for children younger than 6. Tours begin every 20 minutes from 7 to 9 p.m. at Darnall's Chance House Museum, 14800 Governor Oden Bowie Dr., Upper Marlboro. $6, adults; $4, children ages 6-18. 301-952-8010.

Chinese Opera Show

Puppetry, dancing, fire-breathing and martial-arts acrobatics are all part of the Washington Chu Shan Chinese Opera's show at the Clarice Smith Performing Arts Center. Tomorrow and Saturday, the local troupe will use music, artistry and storytelling to demonstrate traditional Chinese opera arts at the College Park theater complex, on Stadium Drive at University Boulevard. Performances are at 8 p.m. tomorrow and 3 p.m. and 8 p.m. Saturday in the Ina and Jack Kay Theatre. Tickets are $35. 301-405-2787.

Maize Maze

An old-fashioned cornstalk maze on the Billingsley Manor property will be haunted by ghosts and goblins for three nights this week. During the day, the maze offers nearly a mile of pathways designed in the shape of a rockfish, the Maryland state fish. But, from 5 to 9 p.m. Monday through Wednesday, the six-acre field will be the center of Halloween-themed "Fright Nights." For daytime visits, the maze is open through the end of the month from 10 a.m. to 5 p.m. on Saturdays and Sundays. Admission is $5 at all times; the museum is at 6900 Green Landing Rd. in Upper Marlboro. 301-627-0730.