The contents of the notebooks are as multi-dimensional as their Escher-like structure. They include fully worked-out scenes, historical background, lists of character names, rough maps of imaginary places, stage settings, an idle rebus (the numeral three, a crossed-out eye, and a mouse), and plot ideas that will be recognizable to any Christie fan: "Poirot asks to go down to country-finds a house and various fantastic details," "Saves her life several times," "Inquire enquire-both in same letter." What's more, in between ominous scraps like "Stabbed through eye with hatpin" and "influenza depression virus-Stolen? Cabinet Minister?" are grocery lists: "Newspapers, toilet paper, salt, pepper ..." There was no clean line between Christie's work life and her family life. She created household ledgers, and scribbled notes to self. ("All away weekend-can we go Thursday Nan.")
I want to comment further but have to leave for work now. More later.