Anthony Browne is at his most brilliant in a new edition ofthis profound picture book about sibling relations.Once upon a timethere lived a brother and sister who were complete opposites andconstantly fought and argued. One day they discovered the tunnel.The boy goes through it at once, dismissing his sister's fears.When he doesn't return his sister has to pluck up the courage to gothrough the tunnel too. She finds her brother in a mysteriousforest where he has been turned to stone...