Secret Of The Sixth Magic: Lyndon Hardy

The first of the five magics were set aside. The high art of sorcery, then true magic, upon which the commerce of all Arcadia depended, then even thaumaturgy, the engineering knowledge of the world came under attack. Jemidon traced the trouble to Melizar, the strange cold being who had seemingly appeared from nowhere. He could alter or negate the laws that had always existed by using a mysterious metagamic, something which only he understood. If the world was to be saved from Melizar, then only the outcast Jemidon could save it. Cover art by Geoff Taylor.