After the enforced absence of their father, three children move with their mother to Yorkshire, where during their adventures they attempt to discover the reason for his disappearance.After the enforced absence of their father, three children move with their mother to Yorkshire, where during their adventures they attempt to discover the reason for his disappearance.After the enforced absence of their father, three children move with their mother to Yorkshire, where during their adventures they attempt to discover the reason for his disappearance.