Videogame novelization originally written for Bioware. Presenting here for Mass Effect's 10th anniversary.

Twenty five years ago, SS Columbia disappeared with all hands in an uncharted solar system. Now, the crew of the USS Enterprise have followed its distress beacon to a harsh alien world where the survivors have built a thriving colony from the wreckage of their former lives. The new colony on Talos Four should be a monument to man's triumph over adversity. If only it were real...

Six months into its first five year mission, the USS Enterprise is sent to investigate a newly discovered planet that appears to an exact duplicate of Earth. Starfleet wants to know who created this planet, and more importantly, HOW. But Starfleet aren't the only ones interested in the secrets of the Doppelganger planet...