On Tuesday, local newspaper the Hannoversche Allgemeine Zeitung received a ransom note.
"I have the biscuit!" the note, made from words cut from newspapers, says. "You want it and therefore you want on one day in February, to give biscuits to all the children in Bult hospital. But those with milk chocolate, not those with dark chocolate and not those without chocolate. And a golden biscuit for the child cancer ward."
The note, which was signed "Cookie Monster," was accompanied by a photo of a person wearing a plush blue Cookie Monster holding the golden biscuit.
The note also said that Bahlsen should donate the reward (of about $1,350) for the return of the biscuit to an animal shelter instead