Advent Fantasy. A small triology

Christmas trees sinking into the ground, light that won't disappear, sugar that becomes rare, all with and without the help of the rogue Uhlenspiegel, a medieval figure from northern Germany and the witty ideas of the people of Schilda, inhabitants of the fictional medieval town of Schilda who were known for their simplicity. Objects that turn into Christmas trees, a reindeer that loses its shadow and other mysterious things.
The old sea captain tells fantastic Advent stories. An Advent calendar with a secret. The colorful pictures on the outside, the hidden doors, numbers among angels, nativity scenes and Santas. But something is not right. Look forward to enjoyable Christmas stories, tree books in one, amusing and entertaining.