Time Life Mysteries of the Unknown unexplained occult lot of 3 books alchemy secrets, wisdom of the ancients

Lot of three books from the Time Life Mysteries of the Unknown series. These are Secrets of the Alchemists, Ancient Wisdom & Secret Sects, and Eastern Mysteries.

These are in poor condition - these books have been well loved, marked with name and catalog numbers by former owner. Some books are water spotted, or discolored and yellowed. Looks like they've been carried out into the field! All have scuffing, cover wear, some soil.