Technical Notes Dan Aykroyd is a well-known actor, musician, entrepreneur and spiritualist; a believer in what he calls the "invisible world" where otherworldly presences are a "form of reality as valid as our normal reality." Partner and veteran fine artist John Alexander has exhibited extensively in the United States and around the world. Together, they were avid researchers of the legend of the 13 crystal heads. And from this inspiration, an idea was born.

A controversial archaeological mystery, 13 crystal heads have been found in regions around the world, from the American southwest to Tibet. They’re dated between 5,000 and 35,000 years old, and were supposedly polished into shape from solid quartz chunks over a period of several hundred years. Although according to Hewlett Packard engineers, they bear no tool marks to tell us exactly how they were made.