An AI Book Series, “The Silent Signal,” Book One: The Extraterrestrial Espionage Posted on March 28, 2025March 29, 2025 by Dennis Robbins Book Two, “The Earth Fights Back” continues here. “The Silent Signal,” Book Three: Aegis Earth is available here. Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Click to email a link to a friend (Opens in new window) Email Click to share on Reddit (Opens in new window) Reddit