East Troy High School, 3128 Graydon Ave., will host its 14th annual Halloween Bash from 4:30 to 6:30 p.m. on Wednesday, Oct. 23. Children 12 and younger, along with their parents, are invited to trick-or-treat through the school. The event will also feature a magic show from 6:45 to 7:15 p.m., face painting, a costume contest, pumpkin bowling, dinner from the Science Club and more. For more information, call (262) 642-6760.