As Elena and Jasper unravel complex webs of deception, they face new, ruthless adversaries and must navigate dangerous worlds where history and modern power collide. Elena stumbles upon a mysterious stowaway, as a series of thefts involving valuable artifacts erupts aboard the ship. Her investigation uncovers a deeper, more dangerous plot: multiple parties are vying for the Codex of Atlantis, an ancient text believed to hold immense power.
Elena and Jasper's next challenge takes them into the elite world of international wine trading. While overseeing a prestigious wine-tasting event aboard the Seraphina, they witness the sudden death of renowned sommelier Xavier, poisoned after drinking from an ancient ceremonial chalice. The investigation uncovers a far-reaching conspiracy involving wine fraud, environmental tampering, and market manipulation, all orchestrated by a shadowy figure known as The Vintner. The chalice itself hides a crucial USB drive that contains evidence of the corruption, leading Elena and Jasper across the Mediterranean to Marseille and Paris.