It was exactly a year ago, when the Hanover tourist board issued this Advent calendar for children. Nothing really special about it, if not one figure depicted behind a tree at the left of the image.
Yes, it is Fritz Haarmann, the cannibal killer from Hanover, with a meat cleaver in his hand:
Haarmann had already appeared in a similar calendar the year before, but nobody took notice.
The 2007 calendar sold very well - the whole run of 20 000 copies was out before Christmas.
Hans-Christian Nolte, head of the Hanover tourist board defended the idea of including the mass murderer in the calendar, saying: "He is part of our history. Even on guided tours the serial killer's story is told".
The killer disappeared from the 2008 version of the calendar.