Crystal Pyramid (The Galaxy Keeper Book 1)

In another part of the galaxy there is an entity of vast intelligence. He is called the Emperor, and his subjects know him only as "Your Highness." He was created by an ancient species to rule the galaxy on their behalf. His mission is to maintain order and to preserve the galaxy for the day they return.

He is immortal, and is served by a theocracy that believes their creators are gods and that they rule the galaxy by divine right. They have the means to enforce their will and to destroy entire star systems inhabited by any species that they see as a threat to their mission.

He is the Galaxy Keeper and when a team of human explorers stumbles upon a gateway to his galaxy wide teleportation system he learns about the human species. The rescue team sent to retrieve the lost explorers faces enormous challenges as they attempt to stop his plan to exterminate the human race.