

Invisible Residents
Book • 1970
In 'Invisible Residents,' Ivan T. Sanderson explores the intriguing theory that advanced civilizations, known as 'OINTS' (Other Intelligences), may exist beneath the Earth's oceans.
He presents numerous case studies of Unidentified Submarine Objects (USOs) and their potential connection to UFO sightings and mysterious disappearances in areas like the Bermuda Triangle.
Sanderson's work challenges conventional explanations for these phenomena, suggesting that these underwater entities could be responsible for some UFO activity.
He presents numerous case studies of Unidentified Submarine Objects (USOs) and their potential connection to UFO sightings and mysterious disappearances in areas like the Bermuda Triangle.
Sanderson's work challenges conventional explanations for these phenomena, suggesting that these underwater entities could be responsible for some UFO activity.