Two desperate men steal a famous artwork and a furious hunt follows. They escape on a secret pilgrim´s path to a lost temple that wind through the old cities of Italy. As they race along the path they are stunned when it leads to codes in the floor mosaic in the Siena Cathedral and in masterpieces by Botticelli, Raphael and Caravaggio - all leading to the lost temple´s great mystery.
Caravaggio is captured and brought to the secret chambers of the Brotherhood.
Wagner learns the truth about Ella. August and Ludwig find the last code and the gateway to the lost temple of the Theatre lies before them.
August and Ludwig hide out at a friend´s villa in Tuscany and try to decipher the Four-Leaf Clover while the Brothers lurk in the gardens.
The Nolan casts a spell over Rome and the city grows weary. At the same time Caravaggio is caught by Sciarra and searches the city for clues to the Theatre.
The quest and the hunt explode when August and Ludwig are trapped in Florence by Wagner and the Brothers of the Path. With little time they have to solve the puzzle at the Uffizi museum and fight off the police and the Brothers who are on their heels. Caravaggio encounters Thoth´s Brotherhood and begins his rise to stardom not knowing that he is drawn closer and closer to the Brotherhood.
August and Ludwig escape to Siena and its great cathedral. Inside the gates they discover a code in the floor mosaic but the police are closing in.
Caravaggio find a secret message in the forbidden part of Rome and is cast in jail. The message points to a cipher hidden in Dante and can unravel the pilgrim´s path to The Theatre.
August and Ludwig discover the Codex Enigma-cipher in an old manuscript. It points to the most valuable artwork in the world, on display at Vienna´s art museum. They believe that the ancient artwork is the gateway to the lost temple.
Meanwhile Caravaggio is hunted by Sciarra and realizes that, no matter how dangerous, the Theatre is the solution to his problems.
The wife of a famous business man is murdered after discovering a 400-year old code inside a priceless artwork at Vienna´s art museum. The business man hires a gifted criminal to help him investigate. In her notes they find fragments of a path to a lost temple where the first book ever written is buried with a secret that stretches back to ancient Egypt – all leading to a dangerous journey.