A mysterious, at least 15-meter deep hole has appeared in the courtyard of a school in Buenos Aires, sparking concern among parents and authorities. Initial measurements using a plumb line failed to reach the bottom of the cavity. The discovery has raised fears that similar voids may exist beneath other parts of the school building. Authorities are investigating the cause of the sinkhole and assessing the structural integrity of the school. Parents are worried about the safety of their children and are demanding a thorough inspection of the entire school grounds. The incident has prompted questions about geological conditions in the area and potential risks to infrastructure. Further investigation is underway to determine the extent and origin of this unexpected geological phenomenon.