so once again diana turned to colthurst for advice.angry. she had the feeling right or wrong that they were pushing her aside to remove her from the role of -- of mother. and therefore they would then control the two princes in the way that they wanted to do it without her there. >> the things she loved the most in the world were those two boys. >> that's exactly right. >> reporter: diana wanted to set the record straight by telling her version of the story in a way that she could control, and without the palace finding out. she knew of an author named andrew morton who had written a book on sarah ferguson, the duchess of york, and had also started one on diana. so a daring plan was launched. diana agreed to answer questions written by morton. >> it was her first excursion into confronting the 'demons' inside herself. and so it was a cathartic experience for her. >> reporter: colthurst would act as the go between, taking morton's questions to diana, and then secretly recording her answers. >> the point was to separate her from it, beca