Necromancer

At the crisis point of humanity's near future, the mysterious cult called the Chantry Guild arose. It was their contention that the computerized world society would fall of its own weight - that it would reduce Earth's billions to a mass of faceless biped ants. They raised the call of destruction. They called upon alternate laws of science - the powers of nature men had once called witchcraft, the necromantic anti-science of the past brought forward to save the world by destroying it! Gordon Dickson's astonishing novel of the not-quite-human hero who turned the tide for the world - and set the conditions for the cosmic migration that lead to the Dorsai - is one of his most effective and most unusual. (from the back cover of the 1978 DAW Books edition)

• A revision, copyright 1990, appeared first in "Four to Dorsai!" from the SFBC in March of 2002, just over a year after the authors passing. This may have stemmed from the author's estate monetizing remaining unpublished works. It is undetermined at this time the extent or scope of this revision, only that it was sufficient to warrant a new (but 12 years old) copyright date.