Time Life: Mysteries of the Unknown (5 Books Series)

Note: I cross-list, so if this listing gets deleted, it means I sold the item on a different app. Send a reasonable offer! No lowballers. The Mysteries of the Unknown book series by multiple authors includes books The UFO Phenomenon, Witches and Witchcraft (Mysteries of the Unknown Series), Mysterious Creatures, and several more. See the complete Mysteries of the Unknown series book list in order, box sets or omnibus editions, and companion titles. Books: 1. Mysterious Creatures 2. Powers of Healing 3. Hauntings 4. Visions and Prophecies 5. Mystic Places Format: 160 pages, Hardcover Published: July 1, 1987 by Time-Life Books