Tuhia he whakamāramatanga mō tēnei wāhanga - I te tīmatanga i whakamahia hei tirotiro i ngā pou whaiaro o te "The Times" mō ngā karere tūmataiti, i te tau 1940 i whakauruhia ia ki te mahi hei kaiwhakamahara ki Bletchley Park. I mahi ia hei kaiawhina ki a Dilly Knox, a i uru atu ia ki te mahi wetewete i mua o te Pakanga o Matapan
He aha? E ai ki te "The Daily Telegraph", i tino mohio ia ki nga taera o nga kaituku hoariri takitahi ka taea e ia te whakatau ko te tokorua o ratou he hoa wahine ko Rosa te ingoa, a na tenei tirohanga i taea ai e ia te whakawhanake i tetahi tikanga angitu.