Dwarf Nudge and the strange Christmas mail

Only 24 days until Christmas! Dwarf Stupf and his friends are very excited about the upcoming Advent season. On the night of December 1st, snow falls, and a mysterious silence spreads. But the calm doesn't last long. Strange things suddenly happen in the forest, and at night, it even seems to be haunted! When the spider lady Rosamunde also disappears without a trace, this year's Christmas celebration for the forest dwellers is in jeopardy. But then a strange letter arrives at the forest post. Does it bring light to the darkness?.