The story contains an example of a horrific depiction of the folklore character, the Sandman, who is traditionally said to throw sand in the eyes of children to help them fall asleep. The following excerpt is from an English translation of the story:
Most curious to know more of this Sandman and his particular connection with children, I at last asked the old woman who looked after my youngest sister what sort of man he was. "Eh, Natty," said she, "don't you know that yet? He is a wicked man, who comes to children when they won't go to bed, and throws a handful of sand into their eyes, so that they start out bleeding from their heads. He puts their eyes in a bag and carries them to the crescent moon to feed his own children, who sit in the nest up there. They have crooked beaks like owls so that they can pick up the eyes of naughty human children."[1][2]