This audio recording details the unsettling disappearance of the Clark family in 1985 from their Detroit home.Investigators found no signs of forced entry, but a mysterious brick structure was discovered in their backyard days later. The monolithic cube had a single hollow space at the top and defied easy removal. A disturbing note written by the family's 15-year-old daughter hinted at unease with the structure's design. Further investigation of the father, Richard Clark, revealed a diagram linked to the strange cube, deepening the mystery surrounding their vanishing.