East Troy High School, 3128 Graydon Ave., will host its 10th annual Halloween Bash from 5 to 7 p.m. on Thursday, Oct. 29. Kids (ages 10 and younger), along with their parents, are invited to trick-or-treat through the high school. The event will also feature face painting, a costume contest, pumpkin bowling and more. The ETHS Leadership Club will sponsor a dinner. The evening will end with an interactive show by Kids are People Too from 7 to 8 p.m. For more information, call (262) 642-6760.