Once again, the Colour Code Gang are summoned to the University of Light to experience the qualities of the Yellow Ray. Calidus, the Lord of Light, explains how this energy also represents the way we think, feel and intuitive knowing. He introduces them to Charalambos, the Lord of the Yellow Ray who tells them how to use their intelligence, how to judge wisely and how to use their sixth sense.
They are sent to Greece, the land of the greatest thinkers and philosophers of all time on a quest to find Aristotle's lost secret scrolls from the 4th and 5th century BC. They are pursued by Seton, the Incinerator, who kills people with his eyes who will steal anything they find. They go through many terrifying and exciting adventures, meeting legendary ghosts from the past. This is a powerful quest, unlike anything else that they have experienced before.