• Back Bay: Join the M Bar & Lounge at the Mandarin Hotel from 9 p.m. to midnight on Saturday for Wicked Sweet Bakery treats and Hypnotiq drinks — classy and comped. [Globe]
• Brookline: Sunday from 8 p.m. to midnight The Fireplace is hosting their eighth annual Nightmare on Beacon Street. Partake in fortune-telling, cocktail drinking, goody gobbling, all while in costume. [Herald]
• Cambridge: Cambridge Brewing Co. celebrates their third annual Great Pumpkin Festival with eight company pumpkin brews and 18 others from guest brewers. The Saturday festivities begin at 4 p.m. and go to 1 a.m. Tickets are $10. [Herald]
• Somerville: Gargoyle’s Nightmare on Elm Street fete is a three-course meal paired with cider and beer. The Sunday affair starts at 5 p.m. and reservations are recommended. Tickets are $40. [Globe]
• South End: SoWa Market closes its season with the SoWa Market of the Living Dead. Head to 460 Harrison Ave Sunday from 10 a.m. to 4 p.m. for food trucks, live music, and zombie artisans. [Globe]