The Engines of God Audiobook (Free)

Humans contact them Monument-Makers. An unidentified race, they left spectacular alien statues spread on distant planets through the entire galaxy, encoded with unusual inscriptions. Twenty-third hundred years interstellar archaeologists have been excavating the enigmatic alien ruins on many planets, searching for signs. But their period is running out. Earth is usually quickly getting unlivable, and colonizers wish to begin renovating these left behind worlds for individual habitation. Only Richard Wald and Priscilla Hutchins think that the monuments may hold the key towards the survival of the human race.

‘McDevitt reaches his greatest award-winning style within this smart and wide-ranging novel.”Kirkus Reviews