"Eltjo Haselhoff is a remarkable rarity in the controversial arena of paranormal research—he has the qualifications and ability to blend hard science and metaphysics without compromising either. In so doing, he remains eminently credible to a world that craves statistics and repeatable tests, while being unafraid of deeper speculation. Anyone who has ever dismissed the entire crop circle phenomenon as a man-made joke needs to read this excellent book. They may be shocked by the utterly convincing case he makes for its authenticity as a genuinely unexplained mystery."
—Andy Thomas, author of Vital Signs: A Complete Guide to the Crop Circle Mystery and Why It Is NOT a Hoax