Lissa, a human Earth woman, and her partner, “Karl,” a giant alien academic who resembles a Tyrannosaur, are interstellar archaeologists investigating the remote and uncharted planet Jonna. There, they seem to have hit the jackpot. For on that distant world they’ve discovered an immense artifact that may have been left by the mysterious beings called the Forerunners. This race predated all the known cultures in the starfaring galaxy and vanished long before any other intelligent species had taken to the stars.