This story was the winner of the first-place prize awarded by Amazing Stories magazine in 1927, having been selected from about 360 stories submitted for the Cover Prize Contest.  The editor praised the previously unknown author for his writing style and for his incorporation of excellent science into the story, which tells of a visit to the Earth from a superior people, with advanced technology (including anti-gravity), to teach us about the mysterious "Thon" and how it will bring about world happiness, health, longevity, and tranquility.

The Visitation (e-könyv)