The world-famous sleuth Sherlock Holmes and his trusty sidekick Doctor Watson are at it again in a holiday caper mystery fit for the whole family! Where is the missing Blue Delilah Diamond? A tale of mystery, intrigue, humor, and “fowl” play await on the trail of this Christmas case. • SHERLOCK HOLMES AND THE CHRISTMAS GOOSE Montgomery Playhouse Arts Barn Dec. 5-21 Fri & Sat at 8 p.m. Sun at 2 p.m. Tickets: $20 (general); $12 (14 and under) Appropriate for all ages.