Mitzi (Helen Alten), Inspector Craddock (Dan Mahoney), Miss Marple (Judith McDermaid) and Letitia Blacklock (Kristine Harder) rehearse a scene from Agatha Christie’s A Murder is Announced on Wednesday at the Chilkat Center. The play will be staged 7 p.m. Friday and Saturday and 2 p.m. Sunday at the Chilkat Center.