8:30 p.m., The Windup Space, 12 W. North Ave., (410) 244-8855 thewindupspace.com, free.
This live and unrehearsed reading of what organizers purport to be an unreleased part of the Harry Potter series—just in time for the official release of the “Harry Potter and the Cursed Child” script—can’t be J.K. Rowling approved. However, there will be Harry Potter themed cocktails, a costume contest, an elf (?), and meat wands (???) so it’s also not to be missed.