After turning back the invasion of super-science war machines, the metaheroes take the fight to the secret powers behind it. Their search for the Thule Society exposes a wider danger spreading across multiple universes. Mercedes Lackey, Cody Martin, and Dennis Lee continue the Secret World Chronicle in Book 2, following the heroes as they confront a threat that reaches beyond a single battlefield. Read it after Invasion and before Revolution, the publisher-confirmed third entry.