Af$ter t/@,*he enf#(orced absence of the)ir =father, three,%! children mo!ve with th/@#eir # mother t,o Y?(orkshire, w,) \here duri #ng t*h#[e$:i r adventur##.@_e s they` attempt ^to discov er th@@e! re:ason fo`#r @^_his disap/)pea`] rance.