Please Do Not Open: The Advent Calendar Book

Nemo, Oda, and Fred look forward to celebrating Christmas.

But first, they collect the favourite toys of the children of their smalltown for the town’s toy‑seller so they can be repaired by him. But then a toy thief steals the entire box with ALL the toys… and all over the town, packages arrive bearing the words: DO NOT OPEN! That certainly looks like a new adventure for the friends (and the readers)! 

1.5 million copies of the series have been sold in Germany alone.