L. P. Davies’ fascination with science (and pseudoscience), psychology, psychic phenomena, and the supernatural has resulted in a series of crime and mystery novels that he calls “psychic fiction.” The majority of these novels reflect this fascination and feature plots in which the principal character is experiencing some form of identity crisis or mental disorientation as a result of an operation, an accident, or the surreptitious administration of drugs. In developing these plots, Davies frequently introduces elements of science, pseudoscience, or the supernatural. As a result, his novels have sometimes been placed in the category of science fiction rather than crime and mystery. Davies’ novels belong in the latter category, however, because like their more traditional counterparts, their solutions depend on the use of the processes of logical deduction. It is this ability to flavor crime and mystery stories with elements of science fiction that constitutes Davies’ principal contribution to the literature.