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Real pages from the case file · 19 pages in the PDF

Colmar, Christmas night 1962. Auguste Kessler, master gingerbread maker, had promised that the twenty-fourth door of his Advent calendar would reveal, after Midnight Mass, who would take over the House and the recipe. When the family comes home from Saint-Martin, he is lying dead in his workshop, and door 24 is empty. You are Inspector Klein's team. The witnesses did not look at their watches: they remember a carol, a story on the radio. His granddaughter copied down twenty-three letters out of twenty-four. And the courtyard, under the snow, kept only one trail.

What's included

  • ✓Inspector Klein's briefing: Christmas night 1962, a master gingerbread maker dead in his workshop, door 24 empty
  • ✓Twelve exhibits to print: an Advent calendar, a child's notebook, the radio listings, a sacristan's register, a snowy courtyard
  • ✓Your working sheets: the radio and who is where, the calendar grid, table of people, conclusions report
  • ✓Four levels of hints online, from a simple reminder to an intermediate conclusion
  • ✓10 days of portal access, counted from your first opening, not from the purchase
  • ✓The full solution online, which opens once you have named the culprit

The Christmas case in the catalogue, for families from age 12: an Advent calendar to be read the way you read a book, a radio that does not keep to the newspaper's times, and a snowy courtyard that remembers footsteps. The solution is not in the PDF: it lives on a portal that your code opens.

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Christmas / 1960s

The Twenty-Fourth Door

Twenty-three doors opened by a child. The twenty-fourth, by a killer.

1 to 7 investigators·1.5 to 2.5 hours·Difficulty ★★★★★
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