He retired in 1997 , returning to his father 's house , Broich , in Crieff , Perthshire , where he wrote five books .
He retired in 1997 , returning to his father 's house , Broich , planted thousands of trees .
He retired in 1997 , returning to his father 's house , Broich , in Crieff , Perthshire , where he wrote five books , and planted thousands of trees .