Twilight of the Mind is the third and final novel in [[Michael Ely]]'s [[Alpha Centauri]] trilogy. A century after the events of Dragon Sun, civilization is braced for a final reckoning. Science and faith collide as the fanatical Believers of Sister Miriam vie with the technological might of Prokhor Zakharov in a merciless war of destruction. Five beseiged factions join the battle against Miriam's zealots while Zakharov and Miriam spar in the virtual labyrinth of a sprawling technological network. As the planet Chiron prepares itself for a new era, humanity's struggle hurtles toward a shocking conclusion.
It was published on [[28 November]], [], and has ISBN 0-67-104077-4.