Alchemy noun al·che·my \ˈal-kə-mē\
A medieval chemical science and speculative philosophy aiming to discover the means to trans mutate base metals into gold, a universal cure for disease, and the a means of indefinitely prolonging life.
Fire is one of the four basic elements of air, earth, fire, and water. Fire has been an important part of all cultures and religions from pre-history to modern day and was vital to the development of civilization. It has been regarded in many different contexts throughout history, but especially as a metaphysical constant of the world.
Since Fire is one of the five basic elements of alchemy (earth, fire, water, air, and aether), I made it one of the four basic geocaches in my Alchemy series. Enjoy and Good Hunting!