Sir Edward Kelley or Kelly, also known as Edward Talbot (1555 –1597), was an ambiguous figure in English Renaissance occultism and self-declared spirit medium who worked with John Dee in his magical investigations. Besides the professed ability to summon spirits or angels in a "shew-stone" or mirror, which John Dee so valued, Kelley also claimed to possess the secret of transmuting base metals into gold, the goal of alchemy, as well as the supposed Philosopher's Stone itself. (Wikipedia)