“Three John Silence Stories” follows the investigations of the psychic physician John Silence, who studies mysterious disturbances affecting the human mind and spirit, and the opening tale “A Psychical Invasion” centers on Felix Pender, once a celebrated humorist who suddenly loses his ability to write and becomes overwhelmed by an undefined but powerful fear. A Swedish woman, Mrs. Sivendson, asks Silence for help after Pender claims that some unseen influence is haunting him and draining away both his joy and creativity. Intrigued by the possibility that the problem may not be purely psychological, Silence begins investigating whether an invisible psychic force is intruding upon the writer’s mind. The story unfolds as an eerie exploration of how unseen energies may disturb human consciousness, blending psychological tension with supernatural mystery.