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Philosopher's Stone
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Philosopher's Stone

Written by William Messner-Loebs (writer), Adam Kubert (artist)

Published in Comico's Jonny Quest #6: Jonny Quest and Jade brought back an object from the previous adventure which is defying Dr. Quest's abilities to analyze it. It is super dense and may date from a very long lost civilization called Mu. There are others who will do anything to get hold of it.