7 Crystal Balls

Sensation! European scientists, who studied little-known territories of Peru and Bolivia, discovered and opened the tomb of the Great Inca! And immediately something inexplicable began to happen to them - one by one, they fell into a lethargic sleep. Is this revenge of the Great Inca for the desecration of the tomb? Tintin became very interested in this story, and when his acquaintance, the professor, was kidnapped, he realized that the two events were connected and set off to search in South America…