The Ultimate Adventure, published in 1939 in Unknown

“The Ultimate Adventure”
by L. Ron Hubbard

Publication date: April 1939

Original publication: Unknown

Genre: Fantasy

Story description: A penniless young man, Stevie Jebson, undergoes an experiment by a malign scientist and journeys into a fantastic Arabian Nights land where a beautiful queen and her subjects are asleep, and an evil jinn nearly kills Jepson before he returns to the real world. Sent back by the scientist for jewels, Jepson rescues the queen from a usurper, shares her throne and then deals peremptorily with the scientist when he himself comes searching for the jewels.