The Parasite (1894) is a novella by Sir Arthur Conan Doyle. The main character, Austin Gilroy, is a professor of Physiology who does not believe in Miss Penclosa's psychical powers and occult skills. The plot takes a grave turn as she falls in love with the professor and controls his feelings for her. About to lose both the love of his life and his career, Gilory finds himself face to face with dangerous occult powers. This EasyRead Comfort Edition has been optimized for readers who do not need large type yet prefer a print that does not strain their eyes.