The Masters of Sleep, published in 1950 in Fantastic Adventures

“The Masters of Sleep”
by L. Ron Hubbard

Publication date: October 1950

Original publication: Fantastic Adventures

Genre: Fantasy

Story description: An older Jan/Tiger and Alice/Wanna rediscover adventure and each other, Jan/Tiger finally merges into a single entity—master of day and night, of the parallel worlds of sleep and waking.

Currently available as the book Slaves of Sleep & The Masters of Sleep.