The series follows five daring young explorers as they encounter treacherous, action-packed adventures, remarkable mysteries, unparalleled danger, and astounding secrets in an unforgettable odyssey that evokes the power of camaraderie between the fearless
Milan, 2030; where only eight years earlier the independent global spy agency Citadel was wiped out by Manticore, the powerful enemy syndicate that manipulates the world from the shadows. Since then, Diana Cavalieri (who is an undercover Citadel agent) is
