The latest is a girl who went missing for 18 years. I cannot believe that anyone would have stayed hidden in adulthood without evidence of Stockholm syndrome, particularly likely when ones captor is also the father of one's children. There would have been opportunities to go but clearly she chose not to.
More curiously, exactly how hidden can something be for just about everyone to avoid it for 18 years? A young woman and two children living in a series of tents in a back garden, and absolutely nobody noticed? What does this say about extreme privatisation of life?