Saturday
The Book Cellar, books for sale, basement, Warren Public Library, 11 a.m.-2 p.m.
"Active Parenting of Teen" class, Forest-Warren Human Services, Hospital Dr., North Warren, 9 a.m.- 2 p.m. (726-2100).
Warren Players presents "The King and I," Library Theatre, 7 p.m.
Sunday
ABATE, Alliance of Bikers Aimed Toward Education, Dan's Down Under, Youngsville, 1:30 p.m.
Slovenian Polka Boosters, Maple Inn, Crosby, PA, 2-6 p.m.
Warren Players presents "The King and I," Library Theatre, 2 p.m.
Trail of Treats, get dressed up and receive treats throughout the mall, $1 per child will benefit children?s therapeutic programs and services at the Achievement Center and Sarah Reed Children?s Center, Warren Mall, 11:30 a.m.-2 p.m.