In Ancient Rome, there was a secret society called the Emerald Collegium that stored secret knowledge of Hermes Trismegistus, encrypted in four copies of the Emerald Tablet. Only the possessor of the priceless key-amulet could read the teacher of wisdom’s will—but the key was lost during the eruption of Vesuvius. In modern times, Vera receives an ancient artifact during a tour in Pompeii and feels an inexplicable connection to it, trying to unravel the great mystery of the universe.