There’s a Preschool Halloween Party planned for 7 pm this evening at the Kelso Public Library, with games, food, crafts and fun for the kids, held in the downstairs portion of the Library. Longview Stageworks is extending its “Murder at the Mansion” interactive dinner theatre show through this weekend, with shows tonight, tomorrow and Saturday at the Rutherglen Mansion. Call 425-5816 for reservation information. The “Nyghtmare Manor” opens tonight out in Silver Lake. Located at 142 Wilford Road, the Nyghtmare Manor will be open from dark until 10 pm, tonight through Halloween. Admission is a can of food and a suggested donation of $1.