Near Mexico City there is a legend about an island off the coast of the mainland.
Three little girls were said to have traveled to the island, but only two returned. The third girl was said to have been swept into the water and drowned. A man was then said to be so obsessed with the missing girl after finding a doll near where she supposedly drowned. So much so that he left his family and spent his life trying to appease the spirit of the girl. I mean, really dude, people actually leave money and rosaries on this island, along with more dolls.