Gently used Two Jack McDevitt Novels. Omega and the engines of god.

Gently used Two Jack McDevitt Novels. Omega and the engines of god. Excellent used condition the engines of god Humans call them Monument-Makers. An unknown race, they left stunning, alien statues encoded with strange inscriptions that defy translation scattered on distant planets throughout the galaxy. Searching for clues about the Monument-Makers, teams of twenty-third-century linguists, historians, engineers, and archaeologists have been excavating the