The Johnson City Public Library is pleased to host a special Harry Potter themed Yule Ball for teens in 7th-12th grades from 6-7:30 p.m. in the Jones Meeting Room. This event, inspired by the Yule Ball in J.K. Rowling’s young adult novel Harry Potter and the Goblet of Fire. Formal attire or Harry Potter costumes are encouraged. This program is free and open to the public, but registration is required. For more information or to register for this festive event, stop by the Youth Services Desk or call (423) 434-4458. Interested teens can also register on the Event Calendar at jcpl.net.