The Christmas Mystery by Jostein Gaarder

How the book is built

One short chapter for each day of Advent, twenty-four in all. The frame is a story hidden behind the windows of an advent calendar that a boy named Joachim buys in Oslo. Inside the story, Elisabet Hansen travels with an angel, Ephiriel, and John the flower seller, moving back through time across Europe toward Bethlehem. I am stopping at those names. A longer plot recap would spoil a book whose whole pleasure is opening one window a day.

Translations I will name, and ages I will not

The English title is The Christmas Mystery. Portuguese readers meet it as Mistério de Natal. The German title in the alias list is Das Weihnachtsgeheimnis. An Italian edition has circulated as Il viaggio di Elisabet. I am not listing every language the research file mentioned unless the title itself was recorded. The record has no recommended age. People give the book to children and also read it as adults. I will not print "ages 8–12" without a publisher line that says so.

Edition records differ

The 1992 date belongs to the original Norwegian work. The dates above describe English paperback records; they are not combined into a single edition date.

Not the film, not the party

Julemysteriet i Lilleby is a 2007 movie about five child detectives and a woman who hates Christmas. It is not this novel. A printable advent you can play tonight is Window Calendar Hunt, which borrows the idea of numbered windows and none of Gaarder's characters. Goodreads lists the English book at the link below. I am not reprinting a star average.