In 1967, a research team from an Am

In 1967, a research team from an American university set out to explore the Well of Sacrifice at Chichen Itza. Unfortunately, however, the water in this well was so dark that is was impossible for divers to see, so the team had to use filters to clean it.
Just as this work was about to begin, some local Indians told the team that the well was inhabited by the spirit of a rain god. The god was known as Chac, and they warned the team that Chac would take revenge if his home was disturbed. The team listened politely but ignored these warnings and went on with their research.
Throughout the summer, pumps and filters were used, but it wasn't until several months later that the water was clear enough for divers to go down into the well.
When they got down to work they began to discover various objects at the bottom of the well. Among the things they brought back to the surface were human bones, and by the time they had finished, they had recovered more than 50 skeletons. This was proof that the well had indeed been used for human sacrifice.
Perhaps it would have been better if the team had listened to the warnings of the Indians, because within a year, several members of the team had been killed in mysterious accidents.