This tidbit is in a wikipedia piece about alternative reality games and nestles up with The Crying of Lot 49. Once someone indicated TRP may have read GK.

[Mark Kohut]

G. K. Chesterton <https://en.wikipedia.org/wiki/G._K._Chesterton>'s 1903
short story "The Tremendous Adventures of Major Brown" (part of a
collection entitled *The Club of Queer Trades
<https://en.wikipedia.org/wiki/The_Club_of_Queer_Trades>*) seems to predict
the ARG concept. In the story, a company called the Adventure and Romance
Agency, Limited, creates adventures for its clients.