Published By: ACE, ISBN: 044173118X, 1989
Mass market Paperback in very good condition. Squared, well bound with a bright & unmarked interior. Some very light edgewear and a bit of creasing to the spine. "Proton and Phaze, parallel worlds of science and magic, are ripe with the seeds of revolution. Mach, a brave and sensitive robot from Proton, and his alternate self, magical Bane from Phaze, hold the power to link the two warring systems--or to destroy them entirely! "