Jorinda's Flight

From the introduction:

This adventure is written for three to five level one characters and meant to introduce new players to the three pillars of a Dungeons & Dragons game: exploration, social interaction and combat. It will take the players around four to five hours to complete the adventure.
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The adventure takes place in the valley of Burg Neuland in the Grand Duchy of Letzebürg. The small eponymous town lies at the center of the valley. Its four hundred inhabitants live scattered around a large keep. North to the town run the outskirts of the large Märchenwald.