: A faint, rhythmic pulse of sapphire light began to throb from the center of the black stone.
I can explore what happens when Alaric shares his discovery with the world or write a prequel about the Aethel's final days. Artifact by Gregory Benford - Goodreads artifact
: A brilliant, three-dimensional hologram burst into the air above the desk. : A faint, rhythmic pulse of sapphire light