Launch sale: −25% on Etsy until 20 NovemberCyber Specials: −30% on Etsy until 1 DecemberInstant download · Print at home · 2 levels in every game

hello@pontusvalstudio.com
Pontusval Studio

The Christmas collection

24 days, one mystery to solve before Christmas.

The Snowberry Advent Mystery turns December into a detective story: one short episode and one puzzle a day, a paper advent calendar to build, and a culprit to unmask on Christmas Eve.

  • One puzzle a day, 1–24 December
  • Ages 6–10, two levels
  • About 5–10 minutes a day

Launch sale: −25% on Etsy until 20 November

Cyber Specials: −30% on Etsy until 1 December

Mystery Advent Calendar for Kids: The Snowberry Advent Mystery

01Occasions

Shop by occasion

All games →

02In season

Christmas & Halloween mysteries

See all →

03Shop by age

Two levels in every kit

Each game comes in a Junior and an Expert version of the same mystery, so siblings of different ages play together.

04Party favourites

Birthday party & rainy day escape rooms

See all →
The printable pages of the Operation Golden Bubble spy kit, laid out side by side
Operation Golden Bubble: an overview of the pages in one kit.

05The studio

An independent studio in Brittany

Pontusval Studio is a small independent studio in Brittany, France. We design printable mystery games for children: real stories with suspects, clues and a culprit, played on paper all around the home.

We are a publisher, not a print shop: we print nothing and ship nothing. Every kit is a PDF that you download from our Etsy shop and print at home.

  1. We write. Each game has its own story, characters and puzzles, written for two reading levels.
  2. We art-direct. The illustrations are created with an AI image generator, then chosen and art-directed by us.
  3. We check. A program solves every puzzle again from the printed data, so each one has exactly one right answer.
  4. We think of your printer. Every page works in black and white, and an ink-saver version is included.
Visit our Etsy shop

06Step by step

How it works

  1. Buy & download

    Instant download from Etsy. Open the one-page Quick-Start first.

  2. Print & hide

    Print the cards (black and white is fine) and hide them around the home. A hiding plan is included, even for a small flat.

  3. Solve & search

    Each puzzle gives a number. The map says where the next card is hidden. Kids collect clues and cross out suspects.

  4. Name the culprit

    Everyone agrees on who did it, then opens the sealed Top Secret envelope to check.

07Blog

Ideas, guides and party plans

All articles →

Newsletter

Our newsletter is coming soon

New mysteries, seasonal ideas and the occasional free puzzle, a few times a year. Until it is ready, write to us and we will reply in person.

Write to us

No sign-up form, no tracking: just an email to a real person.

08FAQ

Questions parents ask

Another question? Write to us at hello@pontusvalstudio.com

What exactly do I get?

A digital download: printable PDF files in colour and ink-saver versions, A4 and US Letter. Nothing is shipped. You buy on Etsy and download the files straight away from your Etsy account.

What age are the games for?

Most games are for kids aged 6 to 10 (the spy mission goes up to 12). Each game has two levels, Junior and Expert, so brothers and sisters of different ages play the same mystery together.

How does a game work?

A grown-up hides the case cards around the home. The kids solve the puzzle on each card; every answer is a number that points to the next hiding place on the map. Along the way they collect clues, cross out suspects and name the culprit at the end.

How long does it take?

About 15 minutes to print and hide the cards, then roughly 30 to 45 minutes of play. These are our estimates. The advent calendar takes 5 to 10 minutes a day for 24 days.

Do I need a colour printer?

No. Every page works in black and white, and an ink-saver version is included. No information is carried by colour alone.

Which languages are included?

Our escape rooms include English, German, French, Spanish, Italian, Dutch and Portuguese in one purchase. The advent calendar is in English and French.

Is it a real escape room with padlocks?

No padlocks, no app and nothing to buy: just paper, scissors, pencils and a bit of tape. Each card has a small check sign so kids know their answer is right before they run off.

Can I use it for a birthday party?

Yes: for a birthday party, a sleepover or a family afternoon. The files are for personal and family use only, so please do not resell or share them.