1960s kids book with "invisible" dust which people think improves everything but doesn't actually exist
Identify this American novel set in the Great Depression era, perhaps set in Chicago and focused on meat packing?
Searching for a sci-fi short story: three robots sent as ambassadors to prevent an interplanetary war
Dystopian short story read in US high school: boy and man travel through ancient ruins which are actually our modern-day civilisation
Detective novel: “1.5 gallons of blood doesn’t sound like a lot to most people. Pour 1.5 gallons of milk on your kitchen floor and get back to me.”
Looking for an old O. Henry story about a wealthy young man trying to woo a "genteel poor" young lady in New York City
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