Correspondence 1968 Correspondence, 1968; tax and trust issues, including financial discussions regarding Agatha Christie Ltd, Christie Copyrights trust and substantial tax payment to the Inland Revenue. Also includes discussion of sale of film rights for 'Endless Nights'. MS and TS blurb and dedication written by Christie for the publication of 'By the Pricking of my Thumbs' as she did not like the one written by the publisher. Correspondents include Max Mallowan, Anthony Hicks and Rosalind Hicks 1968