A Conflict of Wizards: Eller Easton cannot be allowed to live.

Over seven thousand years ago, Earth built four huge starships in orbit, using a large quantity of robot
labor. After identifying several remote worlds known to have surface water and atmospheric oxygen, four
groups found people willing to travel to set up colonies.
The colonial expeditions were named Alpha, Beta, Delta, and Gamma, for want of imagination.
According to the plan, after five years, additional starships would be dispatched, carrying supplies
and additional prospective coloni...