In The Hunchback of Notre Dame, Frollo relates a story that supposedly Averroes buried light in order to create gold from it, as, according to him, gold is light, but that it would not be for thousands of more years until the process would be complete:
"What! this light which inundates my hand is gold! These same atoms dilated in accordance with a certain law need only be condensed in accordance with another law. How is it to be done? Some have fancied by burying a ray of sunlight, Averroes, – yes, 'tis Averroes, – Averroes buried one under the first pillar on the left of the sanctuary of the Koran, in the grand mosque of Cordova; but the vault was not to be opened, to see whether the operation had succeeded, under eight thousand years."
Is there any basis of truth, or even precedent, to any of this?