A giant puma prowling in the forest, workers fleeing... A dark threat hovers over the archaeological site of Cuzco, the Inca city. Philibert and Garance, who came to Peru with their father to participate in the excavations, have no idea that this vacation risks costing them their lives! Lead the investigation with them, follow in the footsteps of the famous Incas, and solve the puzzles to unravel the mystery of the buried city...

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