The Parasite by Sir Arthur Conan Doyle - Audiobook

This is Sir Arthur Conan Doyle in a Gothic mood. It's written in the form of the diary entries of a scientist who prides himself on his materialist philosophy, yet gets drawn into experiments involving dark psychic phenomena that allow a creepy woman to latch onto his mind like a parasite.

It's a psychological thriller and one of his horror stories.
The Parasite is told through the journal entries of Austin Gilroy, a medical professor who lectures on blood and circulation. The story's title refers to the villain, Miss Penclosa, a medium who attaches herself to a young man.

In this short novel of 1894, Conan Doyle describes a character with seemingly extraordinary powers. Are these powers occult or are they only in the minds of other people? There is no Sherlock Holmes to solve this mystery.