The narrator tells the story of a young man who sells blood at a blood-dealer's establishment. The young man, named Nemo, has been recommended by a friend of the young man's. The narrator is shocked to find that the blood sample contains traces of alcohol and "dirty" chemicals. He tells Nemo that he can sell the blood for a price of twenty-five thousand dollars a year for the rest of his life. He also tells Nemo to take care of his body and to be sorry if he does something that makes him feel sorry. Nemo is so shocked that he asks for a glass of the blood-seller's "Kingston's Top a series" to drink. He explains that each layer of blood contains a distinct taste, just like human beings.