►Halloween Walk and Tour of the Old Burying Ground in Lexington takes place Saturday at 6:30 p.m. and leaves from the Depot Building, 13 Depot Square. Admission is $10 for adults and $6 for children, with discounts for Lexington Historical Society members. For reservations, more information, call 781-862-1703 or go to www.lexingtonhistory.org.
►Frightful Friday at Gore Place, 52 Gore St., Waltham, in its final installment this week, has tours starting at 7 and 8:30 p.m. Admission is $15 adults, $10 for ages 5 through 12 and Gore Place members. Capacity is limited. For tickets, call 781-894-2798 or visit www.goreplace.org.
►Murder at the Masquerade takes place at Merchants Row in the Colonial Inn, 48 Monument Square, Concord, Oct. 30 at 7 p.m., with doors opening at 6:15. The ticket price, which includes a gourmet three-course dinner, is $69. For reservations, e-mail firstname.lastname@example.org or call 978-371-2908, ext 544.
►Spookapella, a concert by North Shore Acapella and guests, takes place Saturday at the Center for Arts, 14 Summer St., Natick. The show begins at 8 p.m.; tickets are $22, or $20 for TCAN members. For tickets or information, call 508-647-0097 or go to www.natickarts.org.
►Halloween Open House at Dana Hall School of Music, 103 Grove St. in Wellesley, is next Sunday, 2-4 p.m. Admission is free, but reservations are encouraged; call 781-237-6542 or e-mail music@ danahall.org.
►Pumpkin Patch, a seasonal party held annually by the Sudbury Valley Trustees at Wolbach Farm on Wolbach Road in Sudbury, is scheduled for Saturday. Admission is free for SVT members; $2 per person for nonmembers, with a family maximum of $10. For more details, call 978-443-5588 or go online to www.svtweb.org.
►Decorate a Bag at Artbeat, 212A Mass Ave. in Arlington, Saturday from noon to 7 p.m., andnext Sunday from noon to 5 p.m. Admission and supplies are free. For more information, call 781-646-2200 or go to www.artbeatonline.com.
►Halloween Family Day at the Spellman Museum of Stamps and Postal History, on the Regis College campus at 235 Wellesley St. in Weston, takes place Saturday from noon to 4 p.m. For more information, call 781-768-8367 or go to www.spellman.org.
►Welcome to Our [Halloween] Home at the Orchard House, 399 Lexington Road, Concord, offers a special after-hours tour Saturday from 4:45 to 5:45 p.m. Admission $12 for adults, $10 for seniors and college students, $8 for ages 6-17, and $4 for ages 2-6. A family rate for two adults and up to four youths for this event will be offered at $30. Space is limited; reservations can be made by calling 978-369-4118, ext. 106; for more information, go to www.louisamayalcott.org.
►Tales of the Night at Massachusetts Audubon Society’s Drumlin Farm Wildlife Sanctuary, 208 South Great Road in Lincoln, takes place Thursday and Friday from 6:30 to 9 p.m. Tickets may be purchased in advance for $11 before Wednesday, or after that for $13. Call 781-259-2218 or go to www.massaudubon.org/drumlin.