Slaves of Ijax by John Russell Fearn
A scientist’s vengeance propels Peter Curzon seven hundred years into the future, where he finds himself in a very mysterious world. Science has banished the need to work in order to earn money, and people only pursue activities as a vocation and by choice.
But everyone is also engaged on a Great Task—constructing gigantic towers, with no discernible purpose, following out the orders given to them in the temples of Ijax, a mysterious Buddha-like entity worshiped as a god.
Peter alone seems immune to the influence of Ijax, and unless he can penetrate to the root of the mystery, the future of mankind is imperiled…
John Russell Fearn was an extremely prolific and popular British writer, who began in the American pulps, then almost single-handedly drove the post-World War II boom in British publishing.