Just halfway through this first story in the Borges collection, but I can say it is quite intriguing. Borges is concept-driven I suspect, and as he twists his own mind in wonderment, he enjoys doing the same to the readers.
The concept on this is the narrator being drawn into a mystery of lands that may or may not exist, as written in text of books that while printed and marked as the same, differ in what they include.
The land and the people? Language without nouns, depending on adjectives. Words that are transitory in nature, exist only once perhaps and describing things and places that may or may not exist at all.
Like I said, intriguing.
The Lost Children: A Charity Anthology