A few other series have used the technology/magic combined motif, notably Apprentice Adept, another series by Piers Anthony, and Four Lords of the Diamond by Jack Chalker, although that book had an actual technological basis for the explanation of its magic, in contrast to Piers Anthony's work.
immortality | Immortality | Cruel Immortality | Peaches of Immortality | List of incarnations of Captain America | Intimations of Immortality | Give Me Immortality or Give Me Death | Biological immortality |