Murder Mystery Postcards
The Death of Countess Cornelia, a postcard murder mystery
The Death of Countess Cornelia, a postcard murder mystery
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London, 1934. The champagne is flowing as the gramophone plays the latest jazz numbers at Countess Cornelia’s fabulous party.
The night is a roaring success – until the lights flicker out, plunging the guests into darkness. Suddenly, a blood-curdling scream pierces the room…
How do postcard mysteries work?
This mini murder mystery is made up of four beautiful vintage-style postcards. They are a perfect way to intrigue and perplex a friend! Simply:
- Add your friend’s name and address
- Affix postage stamps
- Every few days, pop a card in the post.
Congratulations, you’ve just sent a Murder by Postcard!
Top tip: You can also play the game before posting, for double the fun!
Step into the story – Travel back to 1934 as you watch the story unfold through each postcard.
Explore the clues – Start by discovering the murder weapon, and continue hunting for clues on each vintage-style postcard.
Solve the mystery – Test your wits as you solve escape-room-style puzzles, crack codes, and decipher clues.
Handy info
- Number of players: 1 - 2
- Difficulty: 2.5 out of 5
- Ages: 14+
- Time to play: 20 - 45 minutes
You can play the game before sending to your friend, for double the fun!
Don't be shy about using the hints! They will help guide you through the game. There are several layers of hints, so you can get help without giving the game away (see each postcard for details).
You will need a pencil and an internet connection, though most of the game is screen-free. Postage stamps are not included.
Postcard size: DL (10cm x 21cm) – size not inclusive of outer packaging. The kit is mostly recyclable.
Made with love in London.

Arrived so quickly and in perfect condition, a perfect stocking filler and I bought a second for myself!
I just put the first postcard in the mail to my granddaughter. I, of course, had to try to solve the mystery first. I did need at least the first clue, but thought it was great fun.
I can't wait for the feedback from my granddaughter!
These are really fun activities to do. They make you think out side of the box. Make sure to also get the Detective's Notes book. It adds to the fun!
Came really quickly! My parents loved the first one and begged me to send them more so I'm looking forward to sending them this one!
Excellent mystery as usual!! As soon as I saw this new mystery I knew I had to buy it. These postcard games are such a fantastic idea & are always really well thought out & executed. The design is beautiful. Really love this mystery & would highly recommend it to others. Thank you so much ❤️