Horse Under Water Horse Under Water Horse Under Water (1963, , ) is the second of four Len Deighton spy novels featuring an unnamed British agent protagonist (named Harry Palmer in the film adaptions). It was preceded by "The IPCRESS File" and followed by "Funeral in Berlin". The novel is set in 1960, mostly in a small fishing village in Portugal, which was then a dictatorship led by António de Oliveira Salazar. It retains the style of "The IPCRESS File" — multiple plots twists, Gauloises cigarettes, grimy, and soot-stained British winter. In common with several of Deighton's other early novels, the chapter headings
The IPCRESS File Deighton's mother cooked for Wolkoff's dinner parties and he said that he "vividly" remembered when British MI5 agents came to arrest her: "The experience was a major factor in my decision to write a spy story at my first attempt at fiction." The plot involves mind control, the acronym IPCRESS of the title standing for "Induction of Psycho-neuroses by Conditioned Reflex under Stress". The brainwashing is similar to a shock technique called psychic driving pioneered by Donald Ewen Cameron in the 1950s, originally on unwitting mental hospital patients, which was used and funded by the Central Intelligence Agency's secret MKULTRA