The Clue in the Ruined Castle

The story revolves around Judy and Peter's investigation into the mysterious circumstances surrounding a ruined castle owned by John Dent, who has been absent for some time. As they explore the castle, they are drawn in by eerie violin music and unsettling rumors about a feud with the former owner, Hilma Joerg. With Granny Joerg's grandchildren missing and suspicions surrounding the caretaker Hiram Boggs, the duo is determined to uncover the truth, fearing for the safety of both Dent and the children.