"Tinker's Dam" by Joseph Tinker is a science fiction novel written during the early 1960s. The story delves into a world where psychic abilities, particularly telepathy, are topics of intense scrutiny and fear, capturing the intricate dynamics of power between individuals in the FBI involved in psychic investigations. The narrative follows Gyp Tinker, an authoritative figure in this field, as he navigates personal and professional challenges brought on by the unexpected revelation of telepathy in his own family. The plot centers around Gyp Tinker, who is called to manage a crisis involving a captured telepath in Washington, D.C., stirring public outrage and panic. As he confronts the dangers posed by psychic powers in a politically charged environment, he learns that his mother, Maude Tinker, has been caught under dubious circumstances. Amidst this emotional turmoil, Gyp must grapple with his own latent telepathic abilities, which he begins to discover after sentencing his mother to detention for being a telepath. The story cleverly intertwines themes of loyalty, family dynamics, and the moral implications of power, ultimately revealing that Gyp's true potential lies not just in authority but in his connection to an undercurrent of telepathic espionage that reshapes his understanding of identity and responsibility. (This is an automatically generated summary.)