Themes, characters, and clue devices for a Christmas mystery

Five settings one host already uses

Party of Suspects names five Christmas party frames: a snowbound country manor, an office holiday party, an ugly-sweater whodunit, a Victorian Christmas, and a ski lodge that cannot leave the mountain. I am treating that as their menu of settings, one source. Ugly-sweater and office-block parties also show up as product names at My Mystery Party (Ugly Christmas Sweater, Kringel's Block Party), which is a second publisher for those two settings only. The manor, the Victorian room, and the ski lodge stay single-source.

Five devices from stories that already exist

• A string of fairy lights used as a ligature between two Christmas trees. That image is in Jonathan Stagge's 1942 novel Call a Hearse, discussed on the book page. It is a plot point, so warn anyone who still wants to read the book.
• A snowball left in a victim's hand, used as a signature in published guides to Adventure Escape: Christmas Killer. I am not calling that image official box art. It comes from the guide cluster, so the status is "guides," not "store page."
• Stolen jingle bells. A Christmas Mystery (2022) is about a child trying to clear a friend's father who is accused of taking the town's bells. TMDB's overview and the Warner Bros. page both point at that theft. See the row on movies.
• A missing star revealed one clue a day for 25 days. That structure is the itch.io product Solve the Case Before Christmas, priced at $12 on 13 Nov 2026. One seller, one structure.
• Tape on the floor under the mistletoe marking a body outline. Party of Suspects suggests crime-scene tape or masking tape as decoration. One source, and it is a prop note, not a plot.

I am not publishing a master list of weapons. These five are traceable. If you want ready-made parts instead of a prompt, use a kit or the original Stocking Alibi.