Title: The scarlet empire
Description: A fantasy action adventure that is totally engrossing.  A man tries to commit suicide by drowning himself and ends up in an under sea city.  It is a fantastic and futuristic city, but extremely repressive.  Our hero has an amazing adventure finds a friend, finds true love and figures out how to escape the Scarlet Empire.   It was written as a critique of Communism, but when it was read out loud to me as a child the social commentary went right over my head.  This is a really fun book.   I would put it in the same category as Jules Verne and H.G. Wells.
Subjects: adventure, science fiction
Places: atlantis
Time periods: 1906