The Brandywine Conservancy & Museum of Art invites area residents 21 and over to throw caution to the wind, glitter in the air, and relive the fabulous disco era. The All Hallows’ Eve Costume Ball will be held on Saturday, Oct. 22, from 8 p.m. to 1 a.m. in the museum courtyard. Prizes will be awarded for the most creative costumes.   Tickets include open bar, refreshments, music, costume contest and more. All proceeds raised will support programs of the Brandywine Conservancy & Museum of Art. To purchase tickets, visit https://335.blackbaudhosting.com/335/24th-All-Hallows-Eve-Costume-Ball.