Laughter, music, and fountains once filled Old Sachsenhausen. But this year, the water is gone - and the festival is in danger. As a world-famous fountain expert, it’s your job to uncover the truth. Follow real clues through historic streets, solve puzzles, and bring joy back to the district. This quest blends exploration, mystery, and fun - perfect for friends and families. Will you restore the flow - or let Alt Sachs run dry?